To calculate the [H⁺], [OH⁻], and pH for the given solution are 0.575 M, 0.575 M, and 0.238, respectively prepared by mixing 75.0 mL of 5.00 M HCl and 25.0 mL of 8.00 M HNO₃.
What is pH?pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral.
The total number of moles of H⁺ and OH⁻ ions produced:
=Moles of H⁺ ions
= moles of H⁺ from HCl + moles of H+ from HNO₃
Moles of H⁺ from HCl = volume × concentration
= 75.0 mL × 5.00 M
= 0.375 moles
Moles of H⁺ from HNO₃ = volume × concentration
= 25.0 mL × 8.00 M
= 0.200 moles
Total moles of H⁺ = 0.375 + 0.200
= 0.575 moles
Moles of OH⁻ ions produced = moles of H⁺ ions
= 0.575 moles
The concentration of H+ and OH− ions:
=[H⁺] = [OH⁻] = moles / volume
= 0.575 moles / 1.00 L
= 0.575 M
The pH of the solution:
pH = -log[H⁺]
= -log (0.575)
= 0.2382 (rounded to 0.238)
Therefore, the [H⁺], [OH⁻], and the pH for the given solution are 0.575 M, 0.575 M, and 0.238, respectively.
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Describe the parts of a lever. Include the following terms (fulcrum, resistance arm and effort arm).
Answer:
Explanation:
A lever is a simple machine that can be used to increase the force or distance of an applied effort. The three main parts of a lever are the fulcrum, resistance arm, and effort arm.
Fulcrum: The fulcrum is the pivot point or point of support on which the lever rests. It is the point around which the lever rotates or moves. The position of the fulcrum is important in determining the mechanical advantage of the lever.Resistance arm: The resistance arm is the part of the lever that extends from the fulcrum to the point where the resistance or load is applied. This is the part of the lever that must be moved in order to lift or move the load.Effort arm: The effort arm is the part of the lever that extends from the fulcrum to the point where the effort or force is applied. This is the part of the lever that the user pushes or pulls on in order to move the resistance arm and lift the load.The mechanical advantage of a lever depends on the ratio of the length of the effort arm to the length of the resistance arm. A longer effort arm will require less force to lift a load, but will require more distance to be moved. Conversely, a shorter effort arm will require more force to lift a load, but will require less distance to be moved.
If 50 grams of water are saturated at 90°C with potassium nitrate and then cooled to 40°C, how much will precipitate?
Answer:
43.1gramms
Explanation:
change the temperatures to kelvin
90--363
40--313
50grams of water are saturated at 90 degree celcius.
then,
50___363
x_____313
then cross multiply
363x=15650
divide both sides by 363
x=43.1gramms
assuming the density of a 5% acetic acid by mass solution is 1.0 g/ml, determine the volume of the acetic acid solution necessary to neutralize 25.0 ml of 0.10 m
To determine the volume of a 5% acetic acid by mass solution necessary to neutralize 25.0 ml of 0.10 m is 300 mL
To calculate the volume of the acetic acid solution necessary to neutralize, you will use the formula:
M₁V₁ = M₂V₂
Where,
M₁ = molarity of acetic acid
V₁ = volume of acetic acid
M₂ = molarity of sodium hydroxide
V₂ = volume of sodium hydroxideInitially
You need to calculate the moles of NaOH in 25 ml of 0.10 M NaOH;
Molarity (M) = 0.10 M
Moles (n) = M × Vn = 0.10 × 25/1000n = 0.0025 mol of NaOH
To neutralize NaOH, you need the same number of moles of acetic acid;
1 mol of NaOH reacts with 1 mol of acetic acid0.0025 mol NaOH reacts with 0.0025 mol acetic acid
Concentration of acetic acid = 5%
Mass of acetic acid in 100 ml of solution = 5 g
Density of solution = 1.0 g/ml
Therefore, volume of acetic acid solution that is necessary to neutralize 25.0 ml of 0.10 m
V = (0.0025 mol acetic acid) x (60.05 g acetic acid/1 mol acetic acid) x (1/5 g acetic acid in 100 ml of solution) x (1000 ml/1 L) x (1/1.0 g/ml)
V = 0.30 L of acetic acid solution
V = 300 mL of acetic acid solution (3 significant figures)
Hence, the volume of the acetic acid solution necessary to neutralize 25.0 ml of 0.10 m is 300 mL.
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How many moles of NH3 is produced from 4.8 mol of H₂
N₂ + 3H₂ = 2NH3
How much hydrogen (in kg) is needed to yield 907 kg of ammonia by the Haber process?
From the balanced equation, we know that 3 moles of H₂ produces 2 moles of NH₃.Therefore, to find the moles of NH₃ produced from 4.8 moles of H₂, we can set up a proportion 3 moles H₂ / 2 moles NH₃ = x moles H₂ / 4.8 moles H₂.
What is a moles ?In chemistry, mole is a unit of measurement used to express amounts of a chemical substance. It is defined as the amount of a substance that contains the same number of entities (such as atoms, molecules, or ions) as there are in 12 grams of pure carbon-12, which is approximately 6.022 x 10^23 entities. This number is known as Avogadro's number, and it is a fundamental constant in chemistry.
Moles are used to quantify chemical reactions and calculate the amount of reactants needed to produce a certain amount of product, or the amount of product that can be obtained from a given amount of reactants.
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74. 5 g of KCl was dissolved in 1000. ML of water. What is the
molality of the solution? (Molar mass of KCI = 74. 5 g/mol)
m.
The molarity of the solution is 1.0 m
The first step is to convert the mass of KCl to moles:
Number of moles of KCl = 74.5 g / 74.5 g/mol = 1.0 mol
Next, we need to calculate the mass of water in kilograms:
Mass of water = 1000 mL x 1 L/1000 mL x 1 kg/L = 1 kg
Now we can calculate the molality of the solution:
Molality = moles of solute / mass of solvent (in kg)
Molality = 1.0 mol / 1 kg = 1.0 m
Therefore, the molality of the solution is 1.0 m.
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Complete and balance the equation for the single displacement reaction between sodium and aluminum chloride. Phases are optional.
balanced equation: Na(s)+AlCl3(aq)⟶
The aluminum chloride and sodium chloride are dissolved in water as aqueous solutions
Why aluminum and sodium chloride react with each other?
The balanced equation for the single displacement reaction between sodium and aluminum chloride is as follows:
Na(s) + AlCl3(aq) → Al(s) + NaCl(aq)
This is a single displacement reaction because sodium is displacing aluminum from its compound aluminum chloride. The products of the reaction are aluminum and sodium chloride.
The equation balanced is because there are equal numbers of atoms each element on both sides of the equation. The coefficients in front of each molecule indicate the number of molecules of each compound or element that are involved in the reaction.
Na(s) + AlCl3(aq) → Al(s) + NaCl(aq) Phases are optional in the equation, but they can be included to indicate the physical state of each substance.
In this equation,
(s) indicates that sodium is a solid,
(aq) indicates that aluminum chloride and sodium chloride are dissolved in water as aqueous solutions,
and (s) indicates that aluminum is also a solid.
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Identify and check the number of stereoisomers expected for each of the following: A. option. B. option. C. option. D. option.
X = 2n, where n is the number οf stereο genic atοms in the mοIecuIe, is the fοrmuIa fοr determining the maximum number οf stereοisοmers.
Hοw many stereοisοmers are pοssibIe fοr ?`The fοrmuIa X = 2n cοnsistentIy deIivers the maximum number οf stereοisοmers, but it faiIs tο prοduce the true number in circumstances with great symmetry. If a mοIecuIe cοntains twο stereοcenters, it shοuId have fοur stereοisοmers. If a mοIecuIe cοntains three stereοcenters, it shοuId have nο mοre than eight stereοisοmers.
Thus, fοr a given cοmpοsitiοn, the maximum number οf stereοisοmers is 2n, where n is the number οf chiraI centers. Therefοre there are fοur structuraI isοmers and fοur stereοisοmers. As a resuIt, οptiοn 'D' is the right answer. Chain isοmerism is a sοrt οf structuraI isοmerism in which the cοmpοnents οf these isοmers are branched in distinct ways.
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In which way the Chain isomerism is a sort of structural isomerisam andd what are the components of these isomers ?
Did the control experiment verify or refute the results from exercise 1? use your results from exercises 1 and 2 to validate your answer.
Experiment 1 E Data Table 1 B Data Table 2 Data Table 1: Antacid Neutralization Data Mass of 0. 59 Crushed Antacid (9) Concentration 1. 0 of HCI (M) Volume HCI 5. 0 (mL) Concentration 1. 0 of NaOH (M) Initial NaOH 9. 4 mL Volume (mL) Final NaOH 8. 2 mL Volume (mL) Total Volume 1. 2 mL of NaOH Used (mL) Experiment 1 Data Table 1 Data Table 2 Data Table 2: Experimental Results I 0. 1825 g 0. 0012 HCl available for neutralization (g): Moles of NaOH required to reach stoichiometric point (mol): HCI neutralized by antacid (g): НСІ neutralized per gram of antacid (9) 0. 1387 0. 2774 Experiment 2 El Data Table 3 B Data Table 4 Data Table 3: Control Experiment Data Concentration 1. 0 of HCI (M) Volume HCI 5. 0 (mL) Concentration 1. 0 of NaOH (M) Initial NaOH 9. 2 mL Volume (mL) Final NaOH 3. 6 mL Volume (mL) Total Volume 5. 6 mL of NaOH Used (mL) Data Table 4: Control Experiment Results 0. 2049 Moles of 0. 0056mol NaOH needed to neutralize 5. 0 mL of 1. OM HCI (mol): Grams of HCI neutralized (g): NaOH 4. 4mL volume difference between back titration and control (ml): Grams of 0. 160g HCI neutralized by NaOH volume difference (9)
Volume difference between back titration and controlHCI neutralized by NaOH volume difference is 0.0056 moles.
Given,
* Mass of Antacid = 0.5g
* [HCl] = 1M
* [tex]V_{HCl}[/tex] = 5 ml (pipetted out)
* [NaOH] = 1M
* [tex]V_{NaOH}[/tex] - 1.2 ml (consumed)
* Amt. of HCl avaliable for neutralisation = 0.1825 g
* No. of moles of NaOH req. to reach eq. point = 0.0012
* Amt. of HCl neutralised by antalid = 0.1387 g
* Amt. of HCl neutralised by antalid = 0.1387 g
* Amt. of HCl neutralised per gram of antalid = 0.1387 g
Solution: [tex]([/tex][tex]N[/tex] × [tex]V[/tex][tex])_{HCl}[/tex] = [tex]([/tex][tex]N[/tex] × [tex]V[/tex][tex])_{NaOH}[/tex]
(1 x 5 ) = [tex]([/tex][tex]1[/tex] × [tex]V[/tex][tex])_{NaOH}[/tex]
= [tex]V(NaOH)[/tex] = ( 1 x 5) / 1 = 5ml
In control expt. data [tex]V(NaOH)[/tex] = 5.6ml
But in given data, [tex]V(NaOH)[/tex] = 1.2ml
So, Volume diff. of NaOH between back titration and control = 5.6 - 1.2 = 4.4ml
So, given follows
So, 4.4 ml of HCl means,
its Conc. will be equal to, 4.4 x 36.5 / 1000 = 0.1606 g
This is correct in control expt. results
In control expt. data, [tex]V(NaOH)[/tex] = 5.6ml
This corresponds to 5.6 x 40 / 1000 = 0.224g
This correspond to 0.224 / 40 = 0.0056 moles
This is correct in control expt. results.
Titration is a laboratory technique used to determine the concentration of an unknown solution by reacting it with a known solution. It is a quantitative method used to determine the amount of a substance in a sample. Titration is often used in chemistry to determine the concentration of acids, bases, and salts.
In a titration, a measured amount of the unknown solution is slowly added to a known solution of a substance with a known concentration called the titrant. The titrant is added until the reaction is complete, and a color change or other observable change occurs. The point at which the reaction is complete is known as the endpoint, and it is usually determined using an indicator, which changes color when the reaction is complete.
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what do carbon dioxide and methane do for our atmosphere?
Methane and carbon dioxide are both greenhouse gases that are crucial in controlling the temperature of Earth's atmosphere.
Both natural processes like respiration and volcanic eruptions, as well as human activity like burning fossil fuels, emit carbon dioxide (CO2) into the atmosphere. It aids in keeping the planet warm enough to support life by retaining heat in the atmosphere. Carbon dioxide levels that are too high, however, can exacerbate climate change and global warming.
Methane (CH4) is another greenhouse gas that is emitted into the atmosphere as a result of human activity such as cattle husbandry and natural gas production as well as natural processes such as decomposition. Even though it decomposes more quickly in the atmosphere than carbon dioxide, it is even more efficient at trapping heat.
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why don’t we change the subscripts in order to balance an equation?
Answer:
Because if we changed the subscript number we will change the identity of the compound and we Well creat a new compound or substance different than what they gave us to balance also the law of conservation of mass states that the mass cannot be created nor destroyed.
Explanation:
What is compact bone made up of?
A closely packed mineralized matrix, which comprises hydroxyapatite, collagen fibres, and osteocytes as well as trace quantities of other proteins and minerals, makes up the majority of compact bone.
Compact bone is one of the two types of osseous tissue that makes up bones in vertebrates. It forms the outer layer of bone and provides strength and support to the skeleton. The structure of compact bone is composed of a tightly packed mineralized matrix, which is made up of hydroxyapatite crystals and collagen fibers. The hydroxyapatite crystals provide hardness and rigidity to the bone while the collagen fibers give it flexibility and resilience. Osteocytes, or bone cells, are also found in the mineralized matrix, which are responsible for maintaining the bone tissue. Additionally, small amounts of other proteins and minerals are present in the matrix, including calcium, phosphate, and magnesium. Together, these components create a strong and durable structure that is able to support the body's weight and withstand stress and strain.
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in this experiment, you qualitatively observed reactions and recorded observations. there is error associated with this. meika thinks its a systematic error. select the option that best defends meika's position. a. you will carefully time each part of the experiment
b. the experimental work will consist mostly of careful observation, recorded concisely and accurately
c. your work needs to be of higher quality than you have previously demonstrated
d. you will be doing many quantitative measurements, for example weighings, etc.
The answer that best defends Meika's position that there is a systematic error associated with the experiment where you qualitatively observed reactions and recorded observations is option C: your work needs to be of higher quality than you have previously demonstrated.
Systematic errors are those that occur repeatedly and are reproducible. They may be caused by flaws in the experimental design, apparatus or procedure, or may occur because of human error. In a sense, a systematic error is a flaw in the measurement process that leads to incorrect results. These types of errors often result in measurements that are either consistently high or low, but not random.Qualitative observations are made using your senses, such as sight, smell, touch, and taste. A qualitative observation is a detailed examination of something that allows us to define its characteristics or properties. Observations, in general, are used to gather data that is used to support or refute a hypothesis.In this experiment, it was stated that you qualitatively observed reactions and recorded observations. Therefore, you made observations based on what you saw, heard, or smelled, rather than based on quantitative measurements. Since you didn't measure anything, the error associated with this experiment must be due to other factors, such as flaws in the experimental design or apparatus or human error.In this regard, the option that best defends Meika's position that there is a systematic error associated with the experiment where you qualitatively observed reactions and recorded observations is option C: your work needs to be of higher quality than you have previously demonstrated. Meika's position is that the errors in the experiment are not random and that they are due to a flaw in the experimental design or apparatus, or human error. Therefore, the work needs to be of higher quality than previously demonstrated to prevent systematic errors from occurring.Learn more about systematic error: https://brainly.com/question/14639975
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In Part A of this Experiment, which direction did the equilibrium shift when water was added? Explain what caused this shift. Keep in mind that water is not included in the K expression. It may be helpful to examine the hydrolysis of the SbCl3 in your lab manual. K is the equilibrium constant Q Is the reaction quotient Equilibrium shifts remains the same; Q=K Equilibrium shifts in the reverse direction; Q K. The equilibrium shifts in the direction with more moles of aqueous products O Equilibrium shifts in the forward direction; Q< K. The equilibrium shifts in the direction with more moles of aqueous products o Equilibrium shifts in the reverse direction; Q > K. The equilibrium shifts in the direction with less moles of aqueous products
Equilibrium shifts in the forward direction; Q< K. The equilibrium shifts in the direction with more moles of aqueous products.
How do you know the direction of equilibrium shift?The direction of an equilibrium shift can be predicted by applying Le Chatelier's principle, which states that when a system at equilibrium is subjected to a stress, the system will shift in a direction that counteracts the stress.
The direction of an equilibrium shift depends on the nature of the stress and the equilibrium constant of the reaction. The equilibrium constant can be used to determine the relative concentrations of the reactants and products at equilibrium, and can also be used to calculate the equilibrium concentrations of the species at a given set of conditions.
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a burette has an initial reading of 3.50 ml. an experimenter opens the stopcock and after some time closes it recording a new burette reading of 12.75 ml. the experimenter repeats this two more times recording new readings of 15.60 ml and 17.25 ml. what is the total ml of titrant that has been dispensed from the burette.
The total volume (in ml) of the titrant that has been dispensed from the burette is 13.75 ml.
What is a burette?A burette is a laboratory apparatus that is used in analytical chemistry to dispense a liquid reagent in a precise and controlled volume to conduct experiments. It consists of a graduated glass tube with a stopcock at the bottom and a funnel at the top that is attached to a burette stand.
Titrant refers to a solution of known concentration that is slowly added to a solution of unknown concentration until a reaction has been completed. When the reaction has been completed, the amount of titrant that has been added is calculated from the burette readings and used to determine the concentration of the unknown solution given that the reaction equation is known.
Here, initial burette reading (Vi) = 3.50 ml, final burette reading (Vf) after first addition = 12.75 ml
Volume of titrant used in the first addition = Vf - Vi = 12.75 ml - 3.50 ml = 9.25 ml
Final burette reading (Vf) after second addition = 15.60 ml
Volume of titrant used in the second addition = Vf - Vi = 15.60 ml - 12.75 ml = 2.85 ml
Final burette reading (Vf) after third addition = 17.25 ml
Volume of titrant used in the third addition = Vf - Vi = 17.25 ml - 15.60 ml = 1.65 ml
The total volume of titrant that has been dispensed from the burette is the sum of the volume of titrant used in all three additions. Therefore, Total volume of titrant = Volume of titrant in first addition + Volume of titrant in second addition + Volume of titrant in third addition= 9.25 ml + 2.85 ml + 1.65 ml= 13.75 ml
Hence, the total ml of titrant that has been dispensed from the burette is 13.75 ml.
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which of these groups of particles has the greatest mass? which of these groups of particles has the greatest mass? a helium nucleus with two protons and two neutrons four electrons four individual protons
The helium nucleus with two protons and two neutrons has the greatest mass. This is because protons and neutrons have much greater mass than electrons. The nucleus of a helium atom is made up of two protons and two neutrons, so it has a greater mass than four individual protons.
Out of the given groups of particles, a helium nucleus with two protons and two neutrons has the greatest mass.What is a nucleus?
A nucleus is the center of an atom, containing positively charged protons and uncharged neutrons. It's where almost all of an atom's mass is located. Electrons, which are negatively charged particles that orbit the nucleus in shells, are also present in an atom. The mass of an atom is largely determined by the mass of its nucleus, which is made up of positively charged protons and uncharged neutrons. Since the helium nucleus is composed of two protons and two neutrons, it is the group of particles with the greatest mass. Thus, out of the given groups of particles, a helium nucleus with two protons and two neutrons has the greatest mass.
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what is the expected color of the starch complex formed during this experiment?(A) The.correct answer is not shown. (B) orange-red (C) green (D) blue-black (E) yellow
When starch is treated with iodine solution, its color changes to Blue-black. Option c is correct.
This reaction is used as a test for the presence of starch in a sample. Iodine reacts with the helical amylose component of starch to form a dark blue complex, while amylopectin, which has a branched structure, forms a less intense blue color. This color change occurs due to the formation of an iodine-starch complex, which has a characteristic blue-black color. Therefore, the intensity of the color indicates the amount of starch present in the sample. Hence, option c is correct choice.
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--The complete question is, When starch is treated with iodine solution, its color changes to
(A) Yellow
(B) Red
(C) Blue-black
(D) Green--
Explain the following observations:a) HCl is a stronger acid than H2Sb) H3PO4 is a stronger acid than H3AsO4c) HBrO3 is a stronger acid than HBrO2d) H2C2O4 is a stronger acid than HC2O−4e) benzoic acid, C6H5COOH, is a stronger acid than phenol, C6H5OH
a) HCl is a stronger acid than H2S due to weak bond between hydrogen and sulfur.
b) H3PO4 is a stronger acid than H3AsO4 due to smaller size of phosphorous atom than the arsenic atom.
c) HBrO3 is a stronger acid than HBrO2 as the oxidation state of Br in HBrO3 is +5.
d) H2C2O4 is a stronger acid than HC2O−4 as HC2O−4 is a conjugate base of H2C2O4.
e) Benzoic acid, C6H5COOH, is a stronger acid than phenol, C6H5OH due to strong resonance structure.
The following observations can be explained as follows:
a) HCl is a stronger acid than H2SIn hydrogen sulfide (H2S). The bond between hydrogen and sulfur is relatively weak. As a result, this bond is more difficult to break than that between hydrogen and chlorine in hydrogen chloride (HCl). Therefore, HCl is a stronger acid than H2S.
b) H3PO4 is a stronger acid than H3AsO4. The phosphorous atom has a smaller size than the arsenic atom. As a result, the P–O bond is more stable than the As–O bond. This makes the H3PO4 a stronger acid than H3AsO4.
c) HBrO3 is a stronger acid than HBrO2. HBrO3 is a stronger acid than HBrO2 since the oxidation state of Br in HBrO3 is +5. In contrast, Br has an oxidation state of +3 in HBrO2. As a result, the bond between Br and oxygen in HBrO3 is weaker, resulting in a higher acidity than in HBrO2.
d) H2C2O4 is a stronger acid than HC2O−4. HC2O−4 is a conjugate base of H2C2O4. The conjugate base is less acidic than the original acid, according to the conjugate acid-base theory. As a result, H2C2O4 is a stronger acid than HC2O−4.
e) Benzoic acid, C6H5COOH, is a stronger acid than phenol, C6H5OH. Benzene ring has a strong resonance structure due to the presence of electron donating OH- group in phenol. Resonance delocalizes the negative charge formed by the loss of a proton, and it makes it less acidic. The absence of an electron-donating group in benzoic acid allows for more hydrogen ion dissociation, making it a stronger acid than phenol.
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A gas mixture contains each of the following gases at the indicated partial pressures:
N2= 215 torr
O2= 102 torr
He= 117 torr
a) What is the total pressure of the mixture?
b) What mass of each gas is present in a 1.35 L sample of this mixture at 25.0 C ?
a) The total pressure of the mixture is 434 torr
b) The mass of each gas is, N₂ = 40.56 g, O₂ = 21.76 g, He = 3.20 g
a) The total pressure of the mixture is calculated by adding all the values of partial pressures of the N₂, O₂, and He
215 torrs of N₂ + 102 torr of O₂ + 117 torr of He
= 434 torr
Thus, the total pressure of the mixture is 434 torr
b) The mass of each gas in the 1.35 L sample of the mixture at 25.0 C can be calculated using the ideal gas law: PV = nRT.
The amount of each gas present is equal to the total moles of gas, n, in the sample.
n = (PV)/(RT)
where P is the partial pressure of the gas in the mixture,
V is the volume of the sample (1.35 L),
R is the ideal gas constant (0.08206 L atm mol⁻¹ K⁻¹), and
T is the temperature in Kelvin (298.15 K).
For N₂: n = (215 torr x 1.35 L)/(0.08206 L atm mol⁻¹ K⁻¹ x 298.15 K) = 1.45 moles
For O₂: n = (102 torr x 1.35 L)/(0.08206 L atm mol⁻¹ K⁻¹ x 298.15 K) = 0.68 moles
For He: n = (117 torr x 1.35 L)/(0.08206 L atm mol⁻¹ K⁻¹ x 298.15 K) = 0.80 moles
The mass of each gas is equal to the moles multiplied by the molar mass of the gas:
For N₂: 1.45 moles x 28.01 g/mol = 40.56 g
For O₂: 0.68 moles x 32.00 g/mol = 21.76 g
For He: 0.80 moles x 4.00 g/mol = 3.20 g
Thus, the mass of each gas is, N₂ = 40.56 g, O₂ = 21.76 g, He = 3.20 g.
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1.choose your dream car
Car year, make and model
2. Car year make model for second car
3. Miles per gallon on the highway for the first car
4.miles per gallon on the highway for second car
5. Balanced equation for the combustion of octane write the coefficients in order
In the picture look please
6. Assume you drive 15,000 miles in one year calculate the number of gallons of gas online your car uses in one year
7.convert gallons to mL( 1 gallon =3785.4mL)
8. Assume you drive the second car 15,000 miles in one year calculate the number of gallons of gas online your car uses In one year
9.convert gallons to mL for the second car (1 gallon = 3785.4mL)
Which are is more efficient in terms of gas use?
Dream car: 2022 Tesla Model S; Second car: 2022 Toyota Camry
If the price of gas is $3.00 per gallon, how much money would you spend on gas in one year for your dream car and the second car?To calculate the amount spent on gas in one year for each car, we need to multiply the number of gallons of gas used in one year by the price per gallon.
For the dream car: 426.9 gallons x $3.00/gallon = $1280.70 spent on gas in one year.
For the second car: 500 gallons x $3.00/gallon = $1500 spent on gas in one year.
Therefore, you would spend $1280.70 on gas for the dream car and $1500 on gas for the second car in one year.
The Tesla Model S is an electric car, so it does not have miles per gallon on the highway.
The Toyota Camry has a highway mpg of 39.
Balanced equation for the combustion of octane: 2C8H18 + 25O2 → 16CO2 + 18H2O
The first car (Tesla Model S) uses no gasoline, so it does not use any gallons of gas in one year.
Converting 1 gallon to mL: 1 gallon = 3785.4 mL
Assuming you drive the Toyota Camry 15,000 miles in one year and get 39 mpg on the highway: 15,000 miles ÷ 39 miles per gallon = 384.6 gallons
Converting gallons to mL: 384.6 gallons x 3785.4 mL/gallon = 1,455,047.64 mL
The second car (Toyota Camry) uses 384.6 gallons of gas in one year.
Converting gallons to mL for the second car: 384.6 gallons x 3785.4 mL/gallon = 1,455,047.64 mL
The Tesla Model S is more efficient in terms of gas use since it uses no gasoline.
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which represents the result of mixing equal volumes of 1 m aluminum chloride, 2 m magnesium chloride, and 1 m potassium chloride solution? (each sphere represents 1 mol of ions.)
The result of mixing equal volumes of 1 M aluminum chloride, 2 M magnesium chloride, and 1 M potassium chloride solution is a colorless and odorless solution that contains six ions in equal amounts.
The AlCl3 dissociates into three ions, one Al3+, and three Cl-.The MgCl2 dissociates into three ions, one Mg2+ and two Cl-.The KCl dissociates into two ions, one K+, and one Cl-.As a result, when the aluminum chloride, magnesium chloride, and potassium chloride solutions are mixed in equal volumes, a total of six ions are present, consisting of one Al3+, one Mg2+, one K+, and three Cl- ions. The composition of the solution, which has six ions in equal amounts, is as follows:
Al3+ (aq) + Mg2+ (aq) + K+ (aq) + 3Cl- (aq) → colorless, odorless solution.
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Which of the following is the source of electrons for the light reactions?
a. C6H12O6 b. CO2 c. NADPH d. H2O
Answer: d. H2O
Explanation: Electrons for the light reactions are found in water. These electrons are taken by a certain enzyme complex known as the water splitting complex
temperature decreasing is what causes the crystals to form on the wooden stick?
three metals, a, b and c, of equal mass, have heat capacities of 0.3 j/goc, 0.4 j/goc, and 0.5 j/goc, respectively. which of these metals will have the largest increase in temperature if the same amount of heat is added to the each of their systems?
The metal that will respond to the added temperature by increasing is metal A because it has the lowest heat capacity.
How to determine increase in temperature?The metal with the smallest heat capacity will have the largest increase in temperature if the same amount of heat is added to each of their systems. This is because metals with smaller heat capacities require less heat energy to increase their temperature compared to those with larger heat capacities.
Therefore, metal A with the heat capacity of 0.3 J/g°C will have the largest increase in temperature if the same amount of heat is added to each of their systems, followed by metal B with 0.4 J/g°C and metal C with 0.5 J/g°C.
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Devise a 6-step synthesis of a carboxylic acid from ethyne using the reagents provided. 1. reagent 1 4. reagent 4 2. reagent 2 5. reagent 5 3. reagent 3 6. reagent 6 H-CEC-H OH Reagent 1 is: Reagent 2 is: Reagent 3 is: Reagent 4 is: Reagent 5 is: Reagent 6 is:
6-step synthesis of a carboxylic acid.
Reagent 1 forming a vinyl chloride, Reagent 2 forming an acyl chloride, Reagent 3 forming a carbonyl chloride, Reagent 4 forming a carboxylic acid, Reagent 5 forming a carboxylate anion and Reagent 6 forming the desired carboxylic acidThis question requires a 6-step synthesis of a carboxylic acid from ethyne using the reagents provided. Here is the solution:
Reagent 1 (HCl) is added to ethyne (H-CEC-H), forming a vinyl chloride.Reagent 2 (Hg(OAc)2) is then added to the vinyl chloride, forming an acyl chloride.Reagent 3 (H2O2) is then added to the acyl chloride, forming a carbonyl chloride.Reagent 4 (K2Cr2O7) is then added to the carbonyl chloride, forming a carboxylic acid.Reagent 5 (NaOH) is then added to the carboxylic acid, forming a carboxylate anion.Finally, Reagent 6 (H2SO4) is added to the carboxylate anion, forming the desired carboxylic acid (OH).Learn more about reaction mechanism: brainly.com/question/26723105
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Whats the difference between zinc amino acid chelate with any other type of zincs?
Answer:
chelated zinc is more easily absorbed than zinc on it's own.
How many moles of gas does it take to occupy 120 liters at a pressure of 2.3 atmospheres and a temperature of 350 K?
Remember:R=0.0821 L•atm/mol k
A. 9.6 mol
B. 3.4 mol
C. 4.7 mol
D.0.79 mol
Answer:
A - 9.6 mol.
Explanation:
Took the test.
Select an O for organic and an I for inorganic for each compound.
H 2 O: Choose...
C 3 H 6: Choose...
C 22 H 24: Choose...
CH 4: Choose...
NO 2: Choose...
H2O and CH4 are inorganic substances, whereas C3H6, C22H24, and NO2 are organic substances.
What is compound?Compounds, which are objects, are created when two or more unique elements bond chemically. The components of a compound are held together by chemical bonds, which are created when atoms share or transfer electrons.
Given that it is made up of two covalently bound elements—hydrogen (H) and oxygen (O)—H2O is an inorganic compound.
Because its carbon (C) and hydrogen (H) atoms are covalently bound, the chemical C3H6 is considered to be organic. Propene, a significant ingredient in the manufacture of plastics and synthetic rubber, is an unsaturated hydrocarbon.
C22H24 is an additional chemical substance, specifically a triterpene hydrocarbon. It is a naturally occurring substance that can be found in a variety of plants and is frequently employed in conventional medicine.
Due to the fact that CH4 only has two elements—carbon (C) and hydrogen (H)—covalently bound to one another, it is an inorganic compound. It is generally referred to as methane and is the simplest and most prevalent hydrocarbon.
Due to the presence of two covalently bound elements—nitrogen (N) and oxygen (O)—NO2 is an inorganic molecule. It is a frequently occurring, highly reactive gas in the atmosphere and a significant source of air pollution.
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to what volume should you dilute 49 ml of a 12 m stock hno3 solution to obtain a 0.113 m hno3 solution?
Answer: To obtain a 0.113 M HNO3 solution, you need to dilute 49 mL of 12 M HNO3 solution to a final volume of 5220 mL (or 5.22 L) by adding enough water to make up the difference.
Explanation: The stock HNO3 solution is 12 M and has a volume of 49 ml.
To get a 0.113 m HNO3 solution, we must dilute it to a certain volume. The volume to which it must be diluted is a mystery.
Let the final volume be V liters. The stock HNO3 solution's volume is 49 mL, which equals 0.049 L.
HNO3's molarity is 12 M.
We must use the formula to calculate the required volume of diluted solution, C1V1 = C2V2
where C1 is the concentration of the stock solution, V1 is the volume of the stock solution used, C2 is the desired concentration of the diluted solution, and V2 is the final volume of the diluted solution.
In this case, we have:
C1 = 12 M
V1 = 49 mL
C2 = 0.113 M
V2 = unknown
Let's do some math.
12 M x 49 mL = 0.113 M x V2
(12 x 0.049) / 0.113 = 5.22 L
The diluted volume is 5.22 L.
The stock HNO3 solution of 49 ml must be diluted to a volume of 5.22 L to obtain a 0.113 m HNO3 solution.
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At what Celsius temperature will argon have a density of 10.3 g/L and a pressure of 6.43 atm?
(31 deg. C)
At 31.52° Celsius temperature will argon have a density of 10.3 g/L and a pressure of 6.43 atm . This is given by ideal gas law.
What is ideal gas ?An ideal gas is a theoretical gas composed of many randomly moving point particles that do not interact with one another. The ideal gas concept is useful because it obeys the ideal gas law, which is a simplified equation of state, and is amenable to statistical mechanics analysis. The requirement of zero interaction is frequently relaxed if the interaction is perfectly elastic or regarded as point-like collisions, for example. When intermolecular forces and molecular size become important, the ideal gas model tends to fail at lower temperatures or higher pressures. It also fails for most heavy gases, including many refrigerants,[2] as well as gases with strong intermolecular forces, most notably water vapor. At high pressures, the volume of a real gas is frequently much larger than that of a pure gas.
using the formula
P × M = d × R × T
Where P = pressure = 6.43 atm
m= molar mass = 40 g
d = density = 10.3 g/L
T = temperature
R = 0.082057 L atm K⁻¹ mol⁻¹
solving for T ,
T = 31.52°C
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Geothermal energy is produced when water touches _______________.
A oil
B hot rocks
C biomass
Answer: Hot Rocks
Explanation: