Answer:
-Aluminum Oxide: The cation is Al3+ and the anion is O2-. The sum of the charges for aluminum oxide is 2(3+) + 3(2-) = 0. Thus, the formula is Al2O3. An ionic compound is named using the name of the cation followed by the name of the anion, eliminating the word ion from each.
Explanation:
Part A The decomposition of HI(g) is represented by the equation In which bulb would you expect the composition of gases to be closest to equilibrium? O bulb 1 2HI(g) =H2(g) +12(g) The following experiment was devised to determine the equilibrium constant of the reaction O bulb 2 O bulb 3 HI(g) is introduced into five identical 400-cm' glass bulbs, and the five bulbs are maintained at 623 K.The amount of Iz produced over time is measured by opening each bulb and titrating the contents with 0.0150 M Na2S2O3(aq). The reaction of I, with the titrant is O bulb 4 O bulb 5 12 +2Na2S2O3-Na2S406 + 2NaI Submit Previous Answers Correct You have enough information to calculate the value of Q at each time increme Part B What is the value of Kc for the decomposition of HI at 623 K? Express your answer numerically. View Available Hint(s) EVO AE ? Kc =
Methane and ethane, two saturated light paraffins that are gaseous in an atmosphere, make up the majority of the hydrocarbon mixture that makes up natural gas.
What is gases?The percentages of nitrogen, oxygen, argon and other gases in the atmosphere of the Earth are roughly 78%, 21%, 0.9 percent, and 0.1%, respectively. Other gases that make up the final 0.1 percent include trace amounts of carbon dioxide, methane, water vapor, and neon. Gases are substances that can exist as a gas in one atmosphere of pressure. The 11 gases are Nitrogen, Hydrogen, Chlorine, Fluorine, Argon, Neon, Krypton, Radon, Xenon, and Oxygen. Given that they are all elements, these are known as pure gases.
Here,
The majority of the hydrocarbon mixture that makes up natural gas is made up of methane and ethane, two saturated light paraffins that are gaseous in an atmosphere.
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Chemistry A (SA) # 3606 / Module 6: Covalent Compounds
1. Ionic compounds and polar molecules can both dissolve in water. Which statement correctly describes what will occur when they dissolve?
Neither the ionic compound nor the polar molecule will dissociate in water.
Both the ionic compound and the polar molecule will dissociate in water.
The ionic compound will dissociate, but the polar molecule will not.
The polar molecule will dissociate, but the ionic compound will not.
Ionic compounds dissolve readily in water because the polar water molecules are able to interact and stabilize the charged ions.
How can water dissolve ionic compounds?Polar solvents, particularly water, help ionic molecules dissolve. This happens when the negative anion of the ionic solid is drawn to the positive end of the water molecule and the positive cation of the ionic solid is drawn to the negative end of the water molecule (oxygen) (hydrogen). An ionic substance separates into positive and negative ions during dissolution. For these ions to remain distinct and soluble in the solution, they need to interact with other charges. If the covalent bonds are a component of a polyatomic ion, a molecule can contain both ionic and covalent bonds. Ammonium ions, NH4+, sulphate ions, SO42-, hypochlorite ions, and ClO- are a few examples of polyatomic ions.To learn more about ionic compounds refer to:
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Caprylic acid is an 8-carbon saturated fatty acid. Draw the structure of caprylic acid. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default. Include all hydrogen atoms.
Caprylic acid is a saturated molecule with eight electrons and the COOH functional group.
What about hydrogen atoms?The initial element and primary component of stars, hydrogen, makes up nine out of every ten atoms in the cosmos. Helium makes up the other 10% of all atoms. Already 100 percent of that. On a cosmic scale, the remaining elements of the periodic table—Elements 3 through 118, lithium through ununoctium—barely register.
What makes hydrogen so crucial?Hydrogen may be utilized to heat our homes and places of work in addition to powering vehicles and producing energy. To reach net zero, it will be crucial to reduce our carbon emissions significantly.
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What is the most similar element to an element with the atomic number of 113 and the outer energy level of 3?
The most similar element to an element is Nihonium.
What is a chemical element?A chemical element is a chemical substance that cannot be broken down into other substances. Atoms are the fundamental building blocks of chemical elements, and the number of protons in each atom's nucleus determines which chemical element it belongs to.
Furthermore, a substance whose atoms all contain the same number of protons is said to constitute an element; alternatively, all the atoms of a certain element must contain the same number of protons. Chemical reactions cannot degrade elements since they are the simplest chemical forms.
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b) Explain why Carbon (IV) oxide and water are removed before liquefaction of air
Answer:
Before air is liquefied, water vapor and carbon dioxide are removed, because these substances solidify when cooled and would clog the pipes of the air liquefaction plant.
What osmotic pressure (in atmospheres) would you expect for each of the following solutions
5.18g of NaCl in 342.5mL of aqueous solution at 58C
and
5.95g of sodium acetate, CH3CO2Na, in 52.5mL of aqueous solution at 20?C
The osmotic pressure of solution 5.18g of NaCl in 342.5mL of aqueous solution at 58°C is 14.077 atm and 5.95g of sodium acetate, CH₃CO₂Na, in 52.5mL of aqueous solution at 20°C is 66.441 atm
What is an easy way to define osmotic pressure?Osmotic pressure is the amount of force required to stop fluid flow on the solution side of a semipermeable membrane when a solution is being separated from pure water.
Moles NaCl = 5.18 g/ 58.44 g/mol= 0.0886
Molarity = 0.0886 mol / 0.3425 L=0.259M
i ( Vant'Hoff factor) = 2
Osmotic pressure = CRTi = 0.259 x 0.08206 x 331 K x 2 = 14.077 atm
Moles CH₃COONa = 5.95 g/ 82.036 g/mol= 0.0725
M = 0.0725 / 0.0525 L=1.381
i = 2
osmotic pressure = 1.381 x 0.08206 x 293 K x 2 = 66.441 atm.
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Na + CuO → NaO + Cu
Answer the hypothesis :
If the reaction is a single replacement reaction, then __ will form __.
Answer:
...then product will form reactant
Explanation:
Na is more reactive than Cu, so Na will join up with O2 and leave Cu by itself
On the diagram of the nitrogen cycle, which number represents nitrite (NO2)?
A) 1
B) 2
C) 3
D) 4
On the diagram of the nitrogen cycle, option C number 3 represents nitrite (NO2)
The Nitrogen Cycle is the process by which nitrogen is converted between its various forms, such as nitrogen gas, ammonia, nitrite, and nitrate, in the environment. Nitrogen gas makes up 78% of the Earth's atmosphere, but it is not readily available to most living organisms in that form. The Nitrogen Cycle involves several key steps, including nitrogen fixation, nitrification, and denitrification. Nitrogen fixation is the process by which nitrogen gas is converted into ammonia by nitrogen-fixing bacteria. Nitrification is the process by which ammonia is converted into nitrite and nitrate by nitrifying bacteria.
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TRUE/FALSE. the heat capacity is typically ignored when deriving boundary conditions for the thermal energy equation
This assertion is false. When determining the boundary conditions for the thermal energy equation, the heat capacity is typically taken into consideration.
The proportion of heat a material can absorb to a change in temperature is known as heat capacity. In terms of the actual amount of material being taken into account, which is most frequently a mole, it is typically stated as calories per degree (the molecular weight in grams).
Specific heat is the heat capacity expressed in calories per gram. The definition of a calorie is based on the fact that one calorie is equal to one degree Celsius of water's specific heat.
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Predict the organic products from reaction of 2-pentyne with 1 equiv HCl
The products from the reaction of 2-pentyne with 1 equiv HCl are attached below.
What is 2-pentyne and what are some uses for 2-Pentyne?Uses. Palladium nanoparticles supported on bacterial biomass, known as bio-Pd, were tested for their catalytic activity using 2-Pentyne.
There are a total of 4 carbon atoms present because linear sp-hybridized orbitals overlap with 1 and 4 carbon sp3 hybridised orbitals along their axes.
It is possible to create 2-pentyne by rearranging 1-pentyne in a solution of ethanolic potassium hydroxide or NaNH₂/NH₃.
We must understand that 1-pentyne is a terminal alkyne and would react with Tollens reagent, whereas 2-pentyne is an internal alkyne and would not react with Tollens reagent. Therefore, using the Silver mirror test, we can distinguish between 1-pentyne and 2-pentyne.
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What compound exhibits only two signals in its 1H NMR spectrum, a triplet and a quintet? A) BrCH2CH2CH2Br B) BrCH2CH2CH2C C) (CH3)2CHCH(CH3)2 D) CH3CH2CH2CH3 E) (CH3)2CHOCH(CH32
BrCH2CH2CH2Br exhibits only two signals in its 1H NMR spectrum, a triplet and a quintet.
What is NMR spectrum?Nuclear magnetic resonance spectroscopy, often known as NMR spectroscopy or magnetic resonance spectroscopy, is a spectroscopic method used to study the magnetic fields around atomic nuclei. Nuclear Magnetic Resonance Spectroscopy is an abbreviation for Nuclear Magnetic Resonance Spectroscopy. The study of molecules using nuclear magnetic resonance (NMR) spectroscopy involves recording the interaction of radiofrequency (Rf) electromagnetic radiations with the nuclei of molecules put in a high magnetic field. Nuclear magnetic resonance spectroscopy (NMR spectroscopy) or magnetic resonance spectroscopy (MRS) is a spectroscopic method used to study the magnetic fields around atomic nuclei.
Here,
BrCH2CH2CH2Br's 1H NMR spectrum contains just two signals, a triplet and a quint.
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Below is the SN2 reaction between (S)-2-chlorobutane and cyanide (CN–). In the first box, draw the curved arrows to reflect electron movements. In the second box add the organic product. In both boxes, add all lone pairs of electrons and non-zero formal charges.
SN2 reaction between (S)-2-chlorobutane and cyanide (CN–) proceeds by a nucleophilic substitution mechanism.
How the reaction works?In this reaction, a nucleophile (CN–) attacks the carbon atom in the chloroalkane (S)-2-chlorobutane, which is bearing a leaving group (chlorine), pushing off the leaving group and forming a new carbon-nitrogen bond.
The curved arrows can be used to depict the flow of electrons in the reaction:
The nucleophile (CN–) donates a pair of electrons to the carbon atom in (S)-2-chlorobutane, forming a new carbon-nitrogen bond and pushing off the chlorine atom.
The electrons from the carbon-chlorine bond move to the chlorine atom, which forms a chloride ion (Cl–).
The organic product of the reaction would be (S)-2-cyanobutane
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Describe how to prepare 500ml of a approximately 0.20 mole of soduim hydroxide (NaOH) using solid sodium chloride
Answer:
To prepare 500ml of a approximately 0.20 mole of soduim hydroxide (NaOH) using solid sodium chloride, you will need to:
Obtain the necessary materials: 500ml of distilled water, 0.20 moles of solid sodium chloride (NaCl) and a container.
Slowly add the solid sodium chloride to the distilled water while stirring the solution.
Use a thermometer to monitor the temperature and stop adding the solid sodium chloride when the temperature reaches 90-100 °C.
The solution will become cloudy and will start to release heat. Allow it to cool down, and then measure the final volume of the solution.
The obtained solution will be a approximately 0.20M of sodium hydroxide.
Please note that this method is called "precipitation method" and it is not the only method to prepare sodium hydroxide solution, and also this method is not safe to handle and should only be done by trained person with proper lab equipment and safety measures.
Identify the indicated glycosidic linkages in the blood group B saccharide that is drawn below.
The disacharide has a beta 1,4 glycosidic bond as its type of connection. Disaccharides have two different kinds of glycosidic linkages: alpha 1,4 glycosidic bonds and beta 1,4 glycosidic bonds.
What is a glycosidic linkage, for instance?The term "glycosidic linkage" describes the connection made between two monosaccharide units via an oxygen atom following the removal of a water molecule. For instance, the sucrose molecule contains a glycosidic bond that connects the two monosaccharide units, -glucose and -fructose.
What kinds of links contain glycosidic molecules?There are two different kinds of glycosidic bonds: 1,4 alpha and 1,4 beta. When the carbon-1's OH is below the glucose ring, 1,4 alpha glycosidic bonds form, and 1,4 beta glycosidic bonds,
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Be sure to answer all parts. Outline a synthesis of the following Wittig reagent from Ph3P and an alkyl bromide.
The Wittig reaction is a chemical reaction used to synthesize alkenes from aldehydes or ketones using a phosphonium ylide (also known as a Wittig reagent) as the nucleophile.
What is Wittig reagent?When an aldehyde or ketone reacts chemically with a triphenyl phosphonium ylide (often referred to as a Wittig reagent), an alkene and triphenylphosphine oxide are produced. This reaction is known as the Wittig reaction or Wittig olefination.
The synthesis of the Wittig reagent from Ph3P and an alkyl bromide can be outlined as follows:
1. Start with Ph3P (triphenylphosphine) and an alkyl bromide (R-Br) in a suitable solvent, such as dichloromethane (CH2Cl2).
2. Add a strong base, such as n-butyllithium (n-BuLi) or potassium tert-butoxide (t-BuOK), to the mixture. This will deprotonate Ph3P to give the phosphonium cation Ph3P+.
3. The alkyl bromide will act as a nucleophile and will react with the Ph3P+ cation to give the phosphonium ylide intermediate: Ph3P+-R-Br.
4. The intermediate will then lose a molecule of Br- to give the final Wittig reagent which is a phosphonium ylide : Ph3P=CHR
5. This reagent can be used as a nucleophile in the Wittig reaction to form an alkene.
Note that this reaction is not suitable for all types of Alkyl Bromides, and some may not be able to form the ylide intermediate or may form by products.
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The standard free energy of formation of AgCl (S) is -110. kJ/mol. Delta G degree for the reaction 2 AgCl (s) rightarrow 2 Ag(s) +Cl2(g) is:
a. 110 kJ
b. 220 kJ
c. -110 kJ
d. -220 kJ
e. -55 kJ
f. 55 kJ
The standard free energy of formation of AgCl (S) is -110. kJ/mol. The Delta G (ΔG) degree for the reaction 2 AgCl (s) → 2 Ag(s) +Cl₂(g) is 220 kJ option - b is correct answer.
How do you define standard Gibbs free energy?The standard Gibbs free energy of a compound's formation is the change in Gibbs free energy that occurs when 1 mole of that substance is made up of its constituent elements in their standard states, which is the form of the element that is most stable at 25 °C and 100 kPa. Its logotype is fG.
The standard Gibbs free energy for any reaction is simply the difference between the sum of the standard Gibbs free energies for the formation of the products and the reactants.
The ΔG of chlorine(gas) and silver(solid) is 0 as it is standard free energy because it is the most stable form of the element at 1 bar of pressure and the specified temperature, usually 298.15 K or 25°C.
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hydrogen bonds between the orange and red strands are not shown but are implied by the model. t/f
"hydrogen bonds between the orange and red strands are not shown but are implied by the model" - True
What is hydrogen bonds?When a hydrogen atom bound to a highly electronegative atom is present close to another electronegative atom with a single pair of electrons, a hydrogen bond forms between the two molecules. This unique sort of dipole-dipole attraction is known as a hydrogen bond. Between molecules, there are intermolecular forces.
The unequal distribution of the electron between a hydrogen atom and a negatively charged atom is the source of hydrogen bonding. While a stable electron pair requires two electrons, hydrogen in a bond still only has one electron.
Thus, the given statement is true.
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Name the organic product of the following reaction
The organic product of the following reaction is called benzene which has chemical formula C₆ H₆
What is benzene?The organic compound benzene has the molecular formula C6H6 and is made up of six carbon atoms joined together in a planar ring by one hydrogen atom. Benzene is a hydrocarbon because it only contains carbon and hydrogen atoms.
At room temperature, benzene is a chemical that is either colorless or a light yellow liquid. It is highly flammable and has a pleasant scent. Benzene quickly dissipates into the air. Its vapor can sink into low-lying areas because it is heavier than air.
What is benzene commonly known by?The organic compound benzene, also known as phenylene, has the molecular formula C6H6. Each of the six carbon atoms in the benzene molecule is attached to a hydrogen atom in a planar ring. Benzene is a hydrocarbon because it only has carbon and hydrogen atoms.
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Step 6: Measure Pressure and Volume with the Book
and 1 kg of Weight
Total the mass on the syringe. Record it in the
correct row of the data table.
kg
DONE
4
O-
01
Click and drag weights to change the pressure.
Click the syringe to zoom in and see the volume.
Total mass on the syringe is 1.498 Kg . To find the total mass of a solution, we need to add the mass of the solute to the mass of the solvent.
What in chemistry is a solute?A solute is something that a solvent can disintegrate in order to make a solution out of. A solute can take many different forms. It could be either a material, fluid, or vapour. The solute is separated and dispersed among its molecules adequately by the solvent, or substance, which induces the solute to dissolve.
pressure = 1.18
volume of the gas in the syringe. we are estimating it to the nearest 0.5 mL is 43.5 mL.
Product of Pressure and volume is 51.3
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how much is 5 moles of lithium phosphide in grams
Answer:
we are given that mass of lithium four spade that is equal to 77.7 grams
What is the mass of 3.40 x 10^35 formula units of KCl??
Answer: it is either 34x or it is 0 im not sure how you do the math or what your question is asking exactly sorry
Explanation:
Mass of 3.40 x 10^35 formula units of KCL is calculated to be 4.20 * 10^13.
What is formula unit?In chemistry, formula unit is the empirical formula of ionic or covalent network solid compound which is used as an independent entity for stoichiometric calculations. It is also the lowest whole number ratio of ions represented in ionic compound.
Convert molecules into moles.
6.02 x 1023 molecules = 1 mole
1 = (1 mole)/(6.02x1023 molecules)
(3.40x10^35 molecules KCL)*(1 mole KCL)/(6.02x1023 molecules KCL)
5.647 *10^11 moles Na2SO4
Molar mass of KCL = 74.55 g/mol
Mass of KCL= 5.647 *10^11 * 74.55
Mass of KCL = 4.20 * 10^13
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classification of matter: after a series of chemical analysis, it was determined that an unknown sample contains three types of atoms, a, b and c. atoms a and b are found to be bound together in the sample, where as atom c is by itself. th unknown sample is also partly gas, and partly solid, with the solid containing a and b.
The correct option is Option A - A Heterogeneous mixture
As it is given that the sample is partly gas (made up of C) and partly solid (made up of A & B), the unknown sample may be a heterogenous mixture (gas C + solid A-B), like smog (smoke + fog).
Chemically speaking, matter can be divided into pure substances and mixtures. Elements and compounds can be created from pure material. The two types of mixtures are heterogeneous and homogenous.
Based on their physical and chemical properties, materials can be grouped. Matter is anything that has mass and space. Any mix of gas, liquid, and solid material is possible. When a substance changes from one state of matter to another without changing its chemical composition, this is referred to as a physical transformation.
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The following question may be like this:
Classification of matter: after a series of chemical analysis, it was determined that an unknown sample contains three types of atoms, a, b and c. atoms a and b are found to be bound together in the sample, where as atom c is by itself. the unknown sample is also partly gas, and partly solid, with the solid containing a and b.
Based on the above information, the unknown sample is
a heterogeneous mixture a homogeneous mixture a pure substance, and it is a compound a pure substance, and it is an elementThe unknown sample is a heterogeneous mixture, that is explained in the below section.
As it is given that the sample is partly gas (made up of C) and partly solid (made up of A & B), the unknown sample may be a heterogenous mixture (gas C + solid A-B), like smog (smoke + fog).
The matter can be classified into pure substances and mixtures. Elements and compounds can be created from pure material. The two types of mixtures are heterogeneous and homogenous.
Based on their physical and chemical properties, materials can be grouped. Matter is anything that has mass and space. Any mix of gas, liquid, and solid material is possible. When a substance changes from one state of matter to another without changing its chemical composition, this is referred to as a physical transformation.
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Complete question-
Classification of matter: after a series of chemical analysis, it was determined that an unknown sample contains three types of atoms, a, b and c. atoms a and b are found to be bound together in the sample, where as atom c is by itself. the unknown sample is also partly gas, and partly solid, with the solid containing a and b.
Based on the above information, the unknown sample is
a heterogeneous mixture
a homogeneous mixture
a pure substance, and it is a compound
a pure substance, and it is an element
What is the molecular formula for the compound?
Enter the answer as YwBaxCuyOz where w, x, y, and z represent the coefficients.
The general formula for many YBCO compounds, also known as Y123, is YBa2Cu3O7x. However, materials with other Y: Ba: There are Cu ratios like YBa2Cu4Oy (Y124) and Y2Ba4Cu7Oy (Y247).
What is a Compound?A compound is a substance composed of two or more distinct chemical elements arranged in a predetermined ratio in chemistry. Chemical bonds that are difficult to break form when the elements combine and react with one another. Atomic electron sharing or exchanging results in the formation of these bonds.
compound Include in the list Share When a problem is compounded, something is added to make it worse, like pouring water on a grease fire. The combination is a compound word; A compound is a mixture or combination of at least two things.
A substance in science that is made by chemically joining two or more distinct elements. Table salt (NaCl), which is made from the elements sodium and chloride, and water (H2O), which is made from the elements hydrogen and oxygen, are examples of compounds.
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a chemist wishes to analyze the caco3 content of an antacid tablet by reaction with hcl. the tablet is weighed, and the volume of hcl required to react with the tablet is measured. which of the following statements correctly describe the assumptions that must be made in order to draw a scientifically valid conclusion from the data? (select all that apply.)
It is anticipated that none of the other compounds in the antacid tablet would interact with the HCl. It is required to assume that it is feasible to fairly accurately estimate the volume of HCl. The chemist must evaluate more than one tablet to obtain a more accurate result. Hence all the statements are true.
In order to treat indigestion and heartburn, antacids work to balance out the acid in your stomach. Without a prescription, you can get them from pharmacies and stores as liquid or chewable tablets.
Calcium carbonate is used to treat illnesses brought on by excessive stomach acid, such as heartburn, indigestion, upset stomach, and others. Lowering the level of gastric acid. It is a member of the antacid class of drugs. Additionally, it might be applied to raise your body's calcium levels. Calcium is a mineral that is crucial for developing strong bones and keeping the heart healthy.
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A chemist wants to use a reaction with Hcl to determine the caco3 concentration of an antacid tablet. The volume of Hcl needed to react with the pill is calculated after weighing the tablet. Which of the following statements most accurately describes the presumptions that need to be made in order to interpret the data in a way that is scientifically sound? (Check every box that applies.)
1. It is expected that the HCl won't interact with any other ingredients in the antacid tablet.
2. It is necessary to presume that it is possible to quantify the volume of HCl fairly accurately.
3. To get a more precise result, the chemist needs to examine more than one tablet.
(E)-1,2-dibromo-3-isopropyl-2-hexene Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default.
Image of (E)-1,2-dibromo-3-isopropyl-2-hexene is shown as in the diagram.
What is meant by stereochemistry?In organic chemistry, structure is not the only thing that matters because the positions of the groups are also very important. This is because, stereochemistry of the compound can be used to determine if the compound is susceptible to certain reaction or not.
Stereochemistry is a subdiscipline of chemistry that involves the study of the relative spatial arrangement of atoms that form the structure of the molecules and their manipulation.
Stereochemistry is the study of three‐dimensional structure of molecules. The cis and trans isomers are forms of stereoisomers, differing in structure only in the location of atoms of the molecule in three‐dimensional space.
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4. Compare the conductivity observations of dilute and concentrated NiCl₂ and NaOH.
Explain why you observed this.
NiCl₂ and NaOH are both electrolytes, which means that they dissociate in water to form ions, which are charged particles that can conduct electricity.
When NiCl₂ is dissolved in water, it dissociates into Ni²⁺ ions and Cl⁻ ions. The conductivity of a dilute solution of NiCl₂ is relatively low because there are fewer ions present in the solution, and thus fewer ions available to conduct electricity.
When the concentration of NiCl₂ is increased, the conductivity of the solution also increases. This is because as the concentration of the solution increases, there are more ions present in the solution, which results in a greater ability to conduct electricity.
Similarly, when NaOH is dissolved in water, it dissociates into Na⁺ ions and OH⁻ ions. As with NiCl₂, the conductivity of a dilute solution of NaOH is relatively low because there are fewer ions present in the solution. As the concentration of NaOH is increased, the conductivity of the solution increases because there are more ions present in the solution.
In summary, the conductivity of dilute solutions of NiCl₂ and NaOH is low because there are fewer ions present in the solution. As the concentration of these solutions increases, the conductivity increases because there are more ions present in the solution.
C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O (g) Which atoms are being oxidized and which are being reduced?
C₃H₈ (g) + 5 O₂ (g) → 3 CO₂ (g) + 4 H₂O oxygen atoms are being oxidized and propane are being reduced.
What is redox reaction ?The term redox reaction is defined as when oxidation and reduction takes place simultaneously.
The loss of electron is called as oxidation, it increases the oxidation state. The gain of electron is called as reduction, it decreases the oxidation state.
The oxidation state of the oxygen is decreased hence it gets reduced while that of propane oxidation state is increased hence it gets oxidized.
Thus, C₃H₈ (g) + 5 O₂ (g) → 3 CO₂ (g) + 4 H₂O oxygen atoms are being oxidized and propane are being reduced.
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The molecular orbitals depicted below are derived from 2p atomic orbitals in F2+, (a) Give the orbital designations. (b) Which is occupied by at least one electron in F2+,? (c) Which is occupied by only one electron in F2+,?
a) Orbital designation of F₂⁺ is shown below:
b) σ(2p) is occupied by at least one electron in F₂⁺
c) π*(2p) is occupied by only one electron in F₂⁺
What is Molecular orbital diagram?The molecular orbital diagram can be used to show the bonds inside a diatomic molecule. The magnetic characteristics of a molecule and their ionization-related changes can be determined using MO diagrams. The number of bonds shared between the two atoms, or the bond order of the molecule, is likewise shown by them.
The structure A represents an anti-bonding MO of side-wise overlapping of 2p-orbital. Thus designation of this orbital diagram is: π*(2p).
The structure B represents a bonding MO of head-on overlapping of 2p-orbital. Thus designation of this orbital diagram is: σ(2p)
The structure C represents a bonding MO of side-wise overlapping of 2p-orbital. Thus designation of this orbital diagram is: π(2p)
The structure D represents an anti-bonding MO of head-on overlapping of 2p-orbital. Thus designation of this orbital diagram is: σ*(2p)
a) Thus, orbital designation of F₂⁺ is shown below:
b) σ(2p) is occupied by at least one electron in F₂⁺
c) π*(2p) is occupied by only one electron in F₂⁺
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The complete question is as follows:
The molecular orbitals depicted below are derived from 2p atomic orbitals in F₂⁺, (a) Give the orbital designations. (b) Which is occupied by at least one electron in F₂⁺? (c) Which is occupied by only one electron in F₂⁺?
2-hexyne will produce a single product upon mercury(ii)-catalyzed hydration.
A. True
B. False
Stibnite, Sb2S3, is a dark gray mineral from which antimony metal is obtained. If you have 2.00 kg of an ore that contains 15.1% antimony, what mass of Sb2S3 (in grams) is in the ore?
Answer: 421.264 grams.
Explanation: This problem is essentially testing you on your knowledge of percent mass except with one extra step.
We are given that there are 2kg or 2000 grams of ore. This ore is %15.1 Antimony. We can multiply 2000 grams by .151 to find the amount of Antimony which is 302 grams. We don't want the amount of Antimony though, we want the amount of Stibnite. To find the amount of Stibite, we can multiply the amount of Antimony by 1/(the percent mass of Antimony in 1 molecule of Stibnite. To find the percent mass we divided 2(molar mass of Sb) by the molar mass of one molecule of Stibnite. This calculation is 2(121.67)/339.69. This is the percent mass of Antimony in Stibnite. We take the inverse because we want to find out how much Stibite there is per amount of Antimony. We do 1/(((2(121.67))/339.69) and multiply that by 302 to find the total amount of Sb2S3.
Hope this helps!