1. Illustrate the mechanism for the following reaction. OH H2 SOy 200 °C

Q: Is this compound aromatic, please explain why why not? or IZ

A: The Compounds which follows Huckel rule are called as the aromatic compounds.  Huckel rule is 4n+2=π...

Q: (iii) Use the equation below and data from the table to calculate a value for the C=C bond energy in...

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Q: Match the following enthalpy changes with the reactions below: enthalpy change of combustion, enthal...

A: These reactions are called- 

Q: Consider the following balanced chemical equation: H2O2 (aq) + 3 r (aq) + 2 H (aq) (aq) + 2 H,O (I) ...

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Q: An atomic absorption method for the determination of the amount of iron present in used jet engine o...

A: The confidence interval CI is given by the following equation., Here, z is the value for the confid...

Q: What is the [OH-] of a 0.1917 M HOCH2COOK? Answers are expressed in molarity. Ka for HOCH2COOH is 1....

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Q: A solution of H2S had a pH of 10.01. What was the [OH-]?

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Q: Complete this reaction Mn, O, Mn; + A providing A, B and C

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Q: energy

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Q: When 2,400 mg zinc is added to hydrochloric acid, 450 mL of hydrogen gas forms at a temperature of 3...

A: To solve this problem we will use the given balanced chemical equation and ideal gas equation .

Q: The following molarities were calculated from replicate standardization of a solution: 0.5006, 0.500...

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Q: A gold wire has a resistance R. If its length and diameter are both cut in half, its resistivity wil...

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Q: Balance the chemical equation below using the smallest possible whole number stoichiometric coeffici...

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Q: Calculate the pH of the solution that results when 8.30 ml of  0.250M KOH is added to  35.0 mL of 0....

A: The Given reaction is., HNO2 + KOH -------> KNO2 + H2O Volume of KOH = 8.30 ml Molarity of KOH = ...

Q: A 15.65 gram sample of chromium is heated in the presence of excess fluorine. A metal fluoride is fo...

A: If 15.65 gram sample of chromium is heated in the presence of excess fluorine. A metal fluoride is f...

Q: A 75.0 mL sample of 0.05 M HCN (pKa = 9.21) is titrated with 0.5 M NAOH. What is [H3O*] in the solut...

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Q: b. p-TSOH (CH3)2NH Benzene C. H. 1. (C6H5)3P H. Br 2. C6HSLI 3.

A: The reaction is like stork enamine reaction.  Here in first step the acid protonates the carbonyl ox...

Q: 1. Write the formulas for the six ions that are always soluble:

A: Formulas for the six ions that are always soluble: 

Q: What mass (in grams) of sodium acetate (MM=0.82 g/mol) is needed to prepare 500 ml of 75 mM acetate ...

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Q: For the following descriptions of molecules, draw the Lewis structure (showing all atoms, lone pairs...

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Q: The activation energy for a certain first-order reaction is 139 kJ/mol. if the rate constant is 0.2...

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Q: Determine the pressure (in mmHg) for the nitrogen gas sample that is  collected when 53.0 g of NaN3 ...

A: given :-  an unbalanced equation :- ___NaN3 (s) → ___Na (s) + ___N2 (g)  mass of NaN3 = 53.0 g  temp...

Q: -y positron emission?

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Q: Directions: Write T if the statement is true and F it is false. Place your answers on the blank prov...

A: Reactant react with each other to produce a chemical species, called product.  Now, in reactant ther...

Q: Q1: |The results of a photoelectric experiment comparing two different metals (A ar B) are shown bel...

A: We would use equation of photoelectric effect to determine which metal has greater value of φ.

Q: a) Draw a Newmann Projection of the following compound looking down the indicated bond (Ph represent...

A: Firstly draw the molecule in the sawhorse form and then take it for the newmann projection Draw the ...

Q: Fou m Costants 12 C he llown Sreactions and correponding equilibenum constants Reaction A K-1) React...

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Q: If K, for HCN is 6.2 x 10-10, what is K, for CN-? O 6.2 x 104 O none of these O 6.2 x 10-24 O 1.6 x ...

A: Given that,  For the acid HCN , Ka = 6.2×10-10 We need to find Kb for its conjugate base CN-  

Q: Examine the given Beer's law standard curve for an unknown dye measured in a 1.0 cm cuvette. Absorba...

A: According to Beer's Law, A = (εl).c   For a graph between A (Absorbance) and c (concentration), Slop...

Q: A chemist determines by measurements that 0.025 moles of hydrogen gas participate in a chemical reac...

A: Given ;- no.of moles of H2 gas = 0.025 mol  To calculate :- mass of H2 gas (in grams)

Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: (ii) Calculate the enthalpy change for the dissolution of (NH4)2SO4(s) using the enthalpy of formati...

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Q: This question is based on the five compounds (A-E) given below. CH;-CH=CH-CH3 (B) (C) (A) CHCI=CHBR ...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for ...

Q: In separate titrations, equal volumes of 0.1 M HCl and 0.1 M HC2H3O2 (weak acid) are titrated with 0...

A: Acid-base titration is a volumetric titration that is based on neutralization reaction between acid ...

Q: (CH,(CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseo...

A: First of all we will calculate moles of hexane and oxygen.

Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Ag+(aq) +...

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Q: Which of the following properly represents the alpha (a) form of the C-2 epimer of D-glucose? CH,OH ...

A: Epimer structure will form if groups attached in a particular carbon centre is exchanged 

Q: Name the amino acids you would need to put together this peptide: || -CH-NH-C-CH2-NH-c-CH-NH3 CH2 НО...

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Q: Find the ∆H for the reaction below, given the following reactions and subsequent ∆H values: H2SO4 (l...

A: Thermodynamics is branch of chemistry in which we deal with amount of heat absorbed or evolved durin...

Q: What is the pH of a solution containing 0.055 mol L-1 HCOOH and 0.141 mol L-1 HCOO- ?

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Q: 25 °C CI + NaCN CN NaBr DMSO CN 25°C + NaCN H2O

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Q: 1. Write the structural formula of the major product(s) formed in each of the following reactions. S...

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Q: Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence. In the...

A: First we write both the equation in a manner and after we multiply both the equations in a way to eq...

Q: A mixture of nitrogen and argon gas is expanded from a volume of 69.0 L to a volume of 89.0 L, while...

A: Given data, Pressure P = 55.0 atm Initial volume = 69.0 L  Final volume = 89.0 L  work done = ?

Q: Aqueous hydrochloric acid (HC1) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium ...

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Q: The rate of deposition of copper (mass deposited per unit time) on the cathode depends on: a) The su...

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Q: m Calculate the kinetic energy of a 34. g bullet moving at a speed of 458. Round your answer to 2 si...

A: Given, mass of a bullet = 34. g = 0.034 kg Speed, v = 458. m.s-1

Q: Is there a difference when the needle or metal clip is placed on the surface of distilled water and ...

A: Yes, there is a difference when the needle or metal clip is placed on the surface of distilled water...

Q: How much MgCl, must you dissolve in water to prepare 20 mL of a 2.0 M solution?

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Q: Which of the following is the C3 epimer of L-idose? но но Но но H- он H- OH но но но H. OH OH H- он ...

A: The C-3 epimer of L-idose is given below