Answer: 58.44amu
Explanation:
The Law of the Conservation of mass states that mass isn't created nor destroyed, but simply transformed.
Applying it in a chemistry context means that there will be the same amount of mass of product as you will start out with, as the mass is transformed from the reactants' mass to the products'.
Therefore, it is 58.44amu.
What group could X be in if it forms ions with ammonium in the ratio of (NH4)3X?
X could be in Group
If it forms ions with ammonium in the ratio of (NH4)3X, X could be in Group IV A. Group IVA (14) metals form cations with +4 charge, although tin (Sn) and lead (Pb) can form cations having +2 charge.
What does the term "coordinate bond" mean?A covalent link (a shared pair of electrons) in which both electrons originate from the same atom is known as a coordinate bond (also known as a dative covalent bond). Two atoms sharing a pair of electrons make a covalent connection. Because the electron pair is drawn to both nuclei, the atoms are kept together.
How is a coordinate bond recognized?An arrow pointing from the donor to the acceptor, with a positive charge on the donor and a negative charge on the acceptor, is used to symbolize a coordinate bond.
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How many ATP's is produced in the glycolysis of 2 glucose molecules?
Answer: 4 ATP molecules is produced in the glycolysis of 2 glucose molecules
How is ATP produced?The first stage of most carbohydrate catabolism, which is described as the breakdown of larger molecules into smaller ones, is glycolysis, which is a part of cellular respiration. Two Greek words that mean "to break down anything sweet" are the source of the word glycolysis. Two molecules of ATP are created during the breakdown of glucose and formation of pyruvate during glycolysis.
Explanation:
2 ATP are produced.
For every glucose molecule, meaning that for every 2 glucose molecules, 4 ATP will be created.
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if the density of hydrogen is 0.090 g l and its rate of diffusion is 5.93 times that of chlorine, what is the density of chlorine
The density of chlorine will be 3.163 g/L.
The mass of a substance per unit of volume is its density. According to Graham's law, a gas's rate of effusion is inversely proportional to its square root density. When a material's particles are concentrated in a low area, they tend to travel to the place where the concentration is highest. When we use perfume or a scented spray in one area of the room and subsequently can smell it throughout the entire space, that is a simple illustration of this process.
rate1 = H2 = 5.93
rate2 = Cl2 = 1
The molecular weight of H2 = 2.016
The molecular weight of Cl2 = x.
By Graham's Law:
5.93 / 1 = x / 2.016
35.1649 = x / 2.016
x = 70.89 g/mol
Determine gas density by volume
70.89 g / 22.414 L = 3.163 g/L
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Would using king size bags of M&M's make a difference to the average "atomic mass"? Why or why not?
No, because every M&M's is identical.
M&M's contain the same amount of protons, M&M's are the same hue. In other words, the size represents the various neutron counts.
Atoms of the same chemical element called isotopes each have a distinct mass number.
While isotopes can vary in mass, they never do so in atomic number (the amount of protons). You will use M&Ms to represent atoms because we are unable to see them. These objectives are use in M&Ms to determine the average atomic mass and to observe how different isotopes are.
In this the number show how many M&M's of that color and size are packed into that bags.
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At 298 K and 1 atm, bromine is a liquid with a high vapor pressure, whereas chlorine is a gas. This provides evidence that, under these conditions, the
At 298 K and 1 atm, bromine is a liquid with high vapor pressure, while chlorine is a gas. This proves that the intermolecular forces of bromine are greater than those of chlorine under these conditions.
At a temperature of 298 K and a pressure of 1 atm, bromine is in a liquid state due to the strong attraction between Br-Br molecules.
At the same temperature and pressure, chlorine exists in the gaseous state due to covalent bonds, while bromine has non-polar covalent bonds.
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The decrease in entropy (the DS value is negative) observed for alkene addition reactions results from:
Give a succinct description of how the various alkene reactants were combined to create the same result. The most stable intermediate carbocation will arise as a result of an electrophilic proton addition in the reaction between HCl and both alkenes.
The observed product is produced in both cases by adding Cl- to the tertiary carbocation that is produced. By figuring out the physical properties of the reactants and products, negative entropy in chemical processes may also be calculated. Gas molecules are widely spaced apart and move randomly in all directions, which results in high entropy in gases. Being a liquid converting into a solid, water freezing into ice is an entropy-reducing process. Due to the molecules' reduced freedom of movement, a solid has less chaos. A negative entropy reaction occurs when hydrogen and oxygen combine to generate water.
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A baketball ha a momentum of 6. 0 kg m/ outh and a ma of 0. 15 kg what i the baketball velocity
The basketball velocity is 40 m/s.
What is velocity?A vector quantity with both size and direction is velocity. In respect to time, it is the rate with which a displacement changes. Using the formula velocity = displacement/time, velocity may be computed. It is a way to gauge how quickly something is moving in a certain direction. Acceleration, or the rate at which an object's velocity changes, is closely related with velocity. Being a vector quantity, velocity has both a direction and a magnitude. An object must move at the a constant speed and in the same direction in order to maintain a constant velocity.
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2 H2 + O2 --> 2 H2O
What mass of water (H2O) will be collected if 20. 0 grams of hydrogen gas (H2) are consumed?
Select one:
179 grams
89. 4 grams
44. 7 grams
358 grams
Answer:
2H2 +O2 - 2H20
4g of H react to give 36g of H20
20g of H gives Xg of H20
cross multiply
4x= 36*20
4x= 720
Xg = 720/4
Xg= 180g approximately
That is A which is 179
The "Great Ocean Conveyor Belt" is an ocean current that helps move heat energy around the earth and keeps our atmosphere more liveable. This ocean current is caused by differences in water density. These differences are caused mainly by
A.) Chemical content and surface winds
B.) Salinity and surface winds
C.) Water temperatures and salinity
D.) Water temperatures and geographical formations
I NEED ANSWER ASAP
The ocean current is caused by differences in water density. The difference in the density of water is mainly caused by the temperature and salinity of water.
What is density?Density of a substance is the measure of its mass per unit volume. It describes how closely its particles are packed within a given volume. Density of a substance is dependent on the temperature and pressure also.
The density of water is affected by the temperature and salinity. Water has its maximum density at 4 ° C. The more saline is water, more will be the density. Because, more ions or salts makes water denser.
The density vary with variations in temperature and salinity. This variation causes water currents from the denser areas to the less dense areas. Ocean currents are also affected by the gravity.
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Convert: 9.94 × 10²² molecules NH3 = ___ mol NH3
5.99 x 10⁴⁶
none of these
2.81
6.06
0.165
Answer:
correct answer is 0.165 moles by calculation
given a mixture of lead (2) oxide,ammonium chloride and sodium chloride,describe how this mixture can be separated to obtain a sample of each
Answer:
It can be done by crystallization, filtration, and sublimation. The easiest method among the three is separation by sublimation. Ammonium chloride sublimes upon heating. Actually, the sublimation is a decomposition of ammonium chloride forming ammonia and hydrogen chloride
Explanation:
How many protons are neutral in nitrogen?
A neutral atom of Nitrogen will have seven protons.
The symbol given for Nitrogen is N, the atomic number 7. Atomic number is equivalent to the number of protons in an atom. So, for Nitrogen, the number of protons is 7.
What is a neutral atom?A neutral atom is an atom which consists of the same number of protons and the same number of electrons. Neutral atoms will have the equal number of protons in the nucleus as they have electrons orbiting the nucleus.
In a neutral atom, the total charge on the atom is zero. Atom has same number of protons and electrons in it. For example, neutral atom of Sodium, with atomic number 11, has 11 protons and 11 electrons in its neutral state.
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Predict the immediate effect of the following changes on the observed cell voltage, E.
H2(g) + PbCl2(s) <–> Pb(s) + 2HCl (aq)
Delta H standard rxn > 0
Match
a) Dissolve NaOH into solution
b) Increase the temperature
c) Increase the amount of PbCl2
d) Dilute the solution by adding H2O
i) Increased E
ii) Decreased E
iii) No change in E
Dissolve NaOH into the Solution will - Increased E
Increase the temperature - Increased E
Increase the amount of [tex]PbCl_{2}[/tex] - No change in E
Dilute the solution by adding [tex]H_{2}O[/tex] - Increased E
E= Voltage or the electromotive force generated in the cell
Dissolving NaOH will increase the conductivity and number of ions in the cell and Increases E . Adding water also increases the presence of hydrogen and hydroxide ions in the solution and Increases E.
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What is iupac name of this compound
Answer:
Explanation:
The lupac name of this compound is 2-Oxohexanoic acid. This compound is composed of two oxygen atoms, six carbon atoms, and one hydrogen atom. The parent chain is made up of six carbon atoms, and the functional group is a carboxylic acid group (COOH)
What is the mass of 2.80 x 10 ^23 molecules of CO2?
The answer is 20.46g.
As we know that
1 mole of CO2 has 6.02 x 10^23 molecules of CO2.
Now, let's say x moles of CO2 has 2.80 x 10^23 molecules of CO2.
Therefore,
x = 2.80 x 10^23 / 6.02 x 10^23 = 0.465
As, M = nmr
M = 0.465 *( 12 + 2x16)
= 0.465 *( 12 + 32)
= 0.465 * 44
= 20.46g
If the amount of H2 is doubled, how many moles of H2O would have formed?
Express your answer as an integer.
If the amount of H2 is doubled, then two moles of water have been created.
Hydrogen and water molecular interactions
Since one mole of H2 is required for the synthesis of one mole of water, doubling the amount of H2 would result in the formation of two moles of H2O. Hydrogen concentration and water content are connected. Five moles of water can be created if there are five moles of hydrogen available.
Similar to this, if 10 moles of hydrogen are accessible, ten moles of water can be produced, leading us to believe that if the amount of H2 is doubled, two times as many moles of water have been formed.
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Assume you expand the group of materials you have to test to include metals. The forces that hold the atoms together in a metallic solid, or piece of metal, are referred to collectively as the "electron sea. " This is because, in a metallic solid, electrons do not stay close to a single atom, rather they move through the metal quite readily. The resulting electrostatic force between the positive nuclei of the metal atoms and the negative electrons is very strong and keeps the metal in the solid state. Given this information, describe the results you would expect to observe if you performed the melting point and conductivity tests on a metal sample
If you perform a melting point test on a metal sample, you would expect to observe that the metal has a relatively high melting point compared to non-metallic materials. This is because of the strong electrostatic forces between the positive nuclei of the metal atoms and the negative electrons, which hold the metal atoms together in a tightly packed lattice structure. As a result, a large amount of energy is required to overcome these forces and melt the metal.
Metal samples are expected to be excellent conductors of heat and electricity when a conductivity test is performed on them. This is because electrons in metallic solids move through the metal fairly easily and are free to move around the lattice structure. This free movement of electrons allows heat and electricity to easily pass through the metal, making it highly conductive.
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The amount of ascorbic acid, C6H8O6. in orange juice was determined by oxidizing the ascorbic acid to dehydroascorbic acid, C6H6O6. with a known excess of l2, and back titrating the excess I2 with Na2S203. A 5.00-mL sample of filtered orange juice was treated with 50.00 mL of excess 0.01023 M l2. After the oxidation was complete, 13.82 mL of 0.07203 M Na2S203 was needed to reach the starch indicator endpoint. Report the concentration of ascorbic acid in milligrams per 100
mL
There is 2.43 mg of ascorbic acid in the 5.00-mL sample, or 48.6 mg/100 mL of orange juice.
Explanation:
For i2+na2s2o3 titration,
I2 + 2 S2O3^-2 <--> 2 I^-1 + S4O6^-2
13.82 mL of 0.07203 M Na2S2O3 was needed to reach the starch indicator end point.
Number of moles of Na2S2O3 = 13.82*0.07203= 0.9954546 millimoles.
So, number of moles of excess I2 = 0.9954546/2 = 0.4977273 millimoles.
For oxidizing the ascorbic acid to dehydroascorbic acid
C6H8O6 + I2 --> C6H6O6 + 2 H+ + 2 I-
SO 1mole of I2 read for 1 mole of C6H8O6.
Initial I2 used = 50*0.01023 = 0.5115 millimoles.
Number of moles of I2 used = 0.5115 - 0.4977273 = 0.0137727 millimoles.
Number of moles of C6H8O6 in5 ml of orange juice = 0.0137727 millimoles.
Weight of C6H8O6 in5 ml of orange juice = number of moles * molecular weight = 0.0137727 * 176 = 2.4239952 mg
In 100 ml of orange juice = 2.4239952/5) *100 = 48.479904 milligrams per 100 mL. is the answer.
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Gaseous ammonia chemically reacts with oxygen O2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of water produced by the reaction of 0.90mol of ammonia. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.
1.08 moles of water () produced by the reaction of 0.90mol of oxygen.
Explanation:
Moles of oxygen given = 0.90 mole
Moles of water are to be calculated.
Step 1 : Write the chemical reaction and balance it.
5 mole of reacts with 4 mole of to give 4 moles of NO and 6 moles of .
Step 2 : Calculate moles of water () utilising mole ratio.
The coefficient of is 6 and coefficient of is 5, So mole ratio of to is 6 : 5
Moles of = 0.90 × 6 (moles of ) ÷ 5 (moles of )
Moles of = 1.08 moles
1.08 moles of is produced by the reaction of 0.90 mole oxygen ()
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How many grams of zinc metal will be produced by treating 54. 0 grams of
aluminum with a solution of zinc chloride, ZnCl,?
(A:196 g Zn)
By treating 54.0 grams of aluminum with a solution of zinc chloride, ZnCl, 328.6g/mol of zinc metal will be created.
The definition of molar mass.The molar mass of a substance is its mass expressed in grams per mole. As shown in this video, the molar mass of a substance can be calculated by adding the molar masses of the substance's component atoms. The number of moles in the substance can then be calculated from its molar mass and converted to mass.
Balance chemical reaction,
2Al + 3ZnCl₂ → 2AlCl₃ +3Zn
Molar mass of aluminum is 27.99g/mol
Molar mass of zinc chloride is 136.29g/mol
The mole ratio of ZnCl₂ to Al is 3:2
Grams → moles → moles → grams
45Al × 1mol Al/27.99g Al × 3 mol ZnCl₂/2 mol Al × 136.29 g ZnCl₂/1 mol ZnCl₂
on simplification,
45×3×136.29/27.99×2 = 328.6g/mol.
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Which of these are involved in creating
new technologies?
A. engineering only
B. science only
C. math only
D. science, engineering, and math
Using the graph complete the table for points A, B, and C.  complete the row of point D
A gas law known as Gay-law Lussac's asserts that a gas's pressure (when kept at a constant volume and mass) varies directly with its absolute temperature
What is Gay- Lussac's Law?A gas law known as Gay-law Lussac's asserts that a gas's pressure (when kept at a constant volume and mass) varies directly with its absolute temperature. In other words, while the mass is fixed and the volume is constant, the pressure a gas exerts is proportional to the temperature of the gas.
In the year 1808, French scientist Joseph Gay-Lussac created this law. Gay-law Lussac's can be expressed mathematically as follows:
P ∝ T ; P/T = k
Where:
P is the pressure that the gas is applying.
T is the gas's actual temperature, while k is a fixed value.
Example of Gay-Lussac lawThe tire pressure of a car increases after driving. This is due to the air inside the tires heating up as a result of friction (a contact force) between the tires and the road. Gay-Law Lussac's states that because the air cannot expand because the tires are effectively fixed-volume containers, the pressure rises.
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Which of these is not a property of the intracellular fluid (ICF)?The concentration of chloride ion is lower than that of interstitial fluid. The concentration of potassium ion exceeds that of sodium ion. The concentration of sodium ion exceeds that of potassium ion. The protein concentration is higher than that of interstitial fluid.
The protein concentration is higher than that of interstitial fluid. The intracellular fluid (ICF) is the fluid inside cells, and is composed of water, electrolytes, and organic molecules.
The intracellular fluid (ICF) is the fluid inside cells, and is composed of water, electrolytes, and organic molecules. Common properties of ICF include high concentrations of potassium ions and low concentrations of chloride ions compared to interstitial fluid. The protein concentration of ICF is lower than that of interstitial fluid.
The protein concentration is higher than that of interstitial fluid.
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What is the theoretical yield of water in this test reaction?
The theoretical yield of water in this reaction is 1 mole (18.015 grams) of water.
What is theoretical yield?Theoretical yield is the amount of a product one would expect to yield from a reaction if it proceeds to completion, according to a balanced chemical equation. It is calculated by multiplying the limiting reactant by the molar ratio between the reactants and the products. The actual yield of a reaction is usually lower than the theoretical yield, due to a number of factors such as incomplete conversion of reactants to products, product losses, and impurities in the reactants. Theoretical yield is used to calculate the percentage yield of a reaction, which is the ratio of the actual yield to the theoretical yield multiplied by 100.
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Answer:
360.g water
Explanation:
I need some chemistry help
Thank u
H2(g) + Cl2(g) = 2 HCl (g) AH-184.6 kJ where the mathematical notation for "is equivalent to" is. However, we also have a quantity called energy change in our thermochemical equation
What is a thermochemical equation mean?Thermochemical equations are symmetric chemical equations that take into account both the energy change and the physiological state of all products and reactants. When energy is a reactant, a reaction is endothermic; whereas, when energy is a product, a reaction is exothermic.
How is a thermochemical process expressed in writing?A balance empirical formula with its heat per reaction is known as a thermochemical equation. They appear to be equal to A+B+C+H=Xjoules. You are already proficient at creating and balancing chemical equations. Therefore, all we must do is add either H or U values.
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If 0.40 mole of H2 and 0.15 mole of O2 were to react as completely as possible to produce H2O, what mass of reactant would remain
The remaining mass of hydrogen that is present in the reaction is 0.20 grams.
The balanced chemical reaction can be depicted as follows:
2H2+O2---->2H2O
1 mole of Oxygen reacts with 2 moles of Hydrogen in order to produce two moles of water i.e., H2O.
0.15 moles of O2 reacts with 2 * 0.15 = 0.30 moles of H2
The moles of H2 are given i.e., 0.40 moles.
So remaining = 0.40 moles - 0.30 moles = 0.10 moles
Thus, the mass of H2 can be calculated by multiplying the number of moles with the molar mass that is expressed as follows:
Mass = moles * molar mass
Molar mass of H2= 2 g/mol
Mass of H2 remained in the reaction = 0.10 moles * 2 g/mole = 0.20 grams.
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Read the following chemical equation.
Cl2 (g) + K+ Br− → K+ Cl− + Br2 (g)
What most likely happens during this reaction? (5 points)
Potassium loses an electron.
Potassium gains an electron.
Bromine loses an electron.
Bromine gains an electron.
In the chemical equation,Cl₂ (g) + K+ Br− → K+ Cl− + Br₂ (g) bromine looses an electron in the reaction.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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the goal of the light reaction is to make ___, an high energy electron transporter, and ____, an energy storing molecule
The goal of the light reaction is to make NADH an high energy electron transporter and ATP an energy storing molecule.
The energy storage molecule ATP and the reduced electron carrier NADPH are produced by the light-dependent processes using light energy, which is required for the subsequent stage of photosynthesis. Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts.
The light reactions are largely controlled by photosystems, sizable complexes of proteins and pigments (light-absorbing molecules) that are designed to capture light. Photosystem I (PSI) and Photosystem II are the two different types of photosystems (PSII).
Both photosystems have a variety of pigments that aid in the absorption of light energy as well as a unique pair of chlorophyll molecules at the reaction center. P700 denotes the special pair of photosystem I, while P600 denotes the unique pair of photosystem II.
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A chemist has 200 mL of a 10% sucrose solution. If she adds x milliliters of a 40% sucrose solution, what is the percent concentration of the final mixture
The final concentration of the mixture depends on the value of x.
What is value?Value is the worth of something. It can refer to the monetary worth of an item or service, the usefulness of something, or the importance of an idea, belief, or experience. Value is a subjective concept and can vary from person to person. Generally, it is the positive attributes that an individual or group associates with something that determines its value. The economic concept of value is based on the idea that the value of a good or service is determined by its cost, supply, and demand.
The final concentration of the mixture is equal to:
(200 mL x 10%) + (x mL x 40%) / (200 mL + x mL)
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What are the possible stress or disturbances for chemical reactions