Consider the following chemical transformation: The transformation takes place via two sequential pericyclic reactions. Identify the two reactions and give a critical explanation whether the reactions are allowable or not. Explain the stereochemistry

Q: (b) Discuss the various conformation of cyclohexane and their stability order. (c) Define enantiomer...

A: B. Stability order of cyclohexane. Chair >Twist boat > Boat > Half chair. C.  Enantiomers: ...

Q: Br O̟N O̟N AIBr3

A: Aromatic ring undergo electrophilic substitution reaction. Nitro group is meta directing group. This...

Q: Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water va...

A: Number of moles of water = 0.080 mol  Number of moles of ammonia = ? 

Q: 5分 From the following sets, what starting materials and reagent(s) are best used to make the followi...

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Q: Iron and water react to form iron(III) oxide and hydrogen, like this: 2 Fe(s)+3 H,O(g)→Fe,03(s)+3 H,...

A: for a given reaction, 2 Fe(s) + 3 H2O(g) → Fe2O3 (s)+ 3 H2(g) volume of reaction vessel = 3.9 L  

Q: a) Lead-acid batteries can deliver, for a few seconds, huge surge currents, a useful feature for car...

A: Answer: This question is based on faraday's first law of electrolysis, according to which mass of an...

Q: 4. Rank the following Acids from strongest to weakest a) K, = 4 x 106 b) pK, = 3.8 C) K, = 2 x 10-3 ...

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Q: Enumerate three (3) characteristics of a substance that can be separated from a mixture by steam dis...

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Q: Give examples of disposable and rechargeable batteries indicating the electrochemistry (battery comp...

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Q: chemist carefully measures the amount of heat needed to raise the temperature of a 312.0 g sample of...

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Q: 7. In your own words, differentiate Intralaboratory Quality Control from Interlaboratory Quality Con...

A: Two questions based on tools in analytical chemistry that are to be accomplished.

Q: Solve the following problems and show complete solutions. The final answers must be reported in prop...

A:     50.00 mL of the original solution was diluted by adding 150.0 mL of deionized water. The diluted...

Q: (Q102) Consider the production of hydrogen chlorine gas from its elements. H2 (g) + Cl2 (g) 2 HCI (...

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Q: Why does the presence of solute in a solution lower its freezing point? Cite sources

A: The temperature at which liquid changes to solid is known as freezing point. Interaction occurs betw...

Q: (c) Trans-1-phenyl-1,3-butadiene has max = 280 nm (E 27,000). Calculate the concentration of a solut...

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Q: 3. What are the intermolecular forces of attraction that hold the water molecules together? Explain ...

A: The chemical formula of water is H2O. Intermolecular forces are the attractive forces that hold the ...

Q: At a certain temperature, the equilibrium constant K for the following reaction is 1.3: CL(e) + CHCI...

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Q: (c) State Hess's law by giving a suitable example.

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Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): C...

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

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Q: Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this: 3 NO,(g)+H,0(...

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Q: 5. Translate the following word equations into balanced chemical equations. Use molecular formulas f...

A: Given,   

Q: 2. A Mg(OH)2 solution has a concentration of 4.0x10-5 M. Calculate the molarity of each ion in solut...

A: since, 2 mol OH- is produced from 1 mol Mg(OH)2 hence molarity will be doubled for OH-

Q: Determine the Kb for cocaine (a base). To do this, construct an ICE table to determine concentration...

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Q: 4. (a) How can you obtain configuration of geometrical isomers by measuring: i) dipole moment ii) me...

A: Geometrical isomer condition: Restricted rotation( often involves carbon carbon double bond for int...

Q: What are acids often using in measuring alkalinity. * H2S04, HCl and HNO3. O H2SO4 and HNO3. O H2S04...

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Q: (a) Polymers are classified into natural and synthetic polymers. (i) Differentiate between the synth...

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Q: Richards and Willard determined the molar mass of lithium and collected the following data.   Experi...

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Q: The relative molecular mass and boiling point of four molecules are given below. Explain the order o...

A: More the molecular mass more the Vanderwaal  forces more the boiling Point .

Q: 1. What are the two reactants used to synthesize the Aspirin? 2.  Why is water added to the reactio...

A: Aspirin is synthesized through the esterification of salicylic acid by the acetic anhydride.The reac...

Q: Kindly show complete solutions. Report the final answer in the proper number of significant figure M...

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Q: A major component of gasoline is octane (C3H18). When octane is burned in air, it chemically reacts ...

A: Given data, the mass of octane=9.8 g, the molar mass of octane=114 g mol-1 mass of oxygen= ? , molar...

Q: The yellow precipitate, barium sulfate (BaSO4), is formed when sodium sulfate (Na2SO4) reacts with b...

A: Given: Mass of sodium sulfate = 12.50 g Mass of barium bromide = 28.0 g Actual yield of barium sulfa...

Q: (a) Calculate the number average and mass average molecular mass of a given sample of polyvinylchlor...

A: The molecular mass of polymers is expressed in two ways  1) Number average molecular mass (M¯n)  2) ...

Q: For each system listed in the first column of the table below, decide (if possible) whether the chan...

A:                     Entropy is measured by randomness.  More is randomness ,more will be entropy.  I...

Q: Chemical reaction in primary batteries is. * O Reversed. O Not reversed.

A: Primary battery is designed to be used once and then diacarded. 

Q: 1. What is the percent yield of the reaction: PCI3(g) + 3H2O () --а НЗРОЗ (aq) + 3HCI (aq)

A: As per our company guidelines, we are authorised to solve only one question at a time. Please post r...

Q: Draw the optical isomers of CH3-CHOH-CHOH-CH3 . INDICATE the absolute configuration (R/S) of each ch...

A: An optically active compound has chital carbon atom.A chiral carbon atom is one which attach with fo...

Q: Which of the following structure identifies as D stereoisomer? CHO СНО СНО w十。 HỌ H+OH НО -H- ČH2OH ...

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Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many solid fertilizers. It can be made ...

A: • Aqueous phosphoric acid on reaction with liquid ammonia gives solid ammonia phosphate.    • This c...

Q: Determine the type of reaction shown below: Br Br2, H20

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Q: Solution 10% w/v solution of NaCl means that. * O 10 gm of NaCl in 100 ml of solution. O 10 gm of Na...

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Q: .Titrant is usually in In a conical flask. In beaker. O

A: burette 

Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartment...

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Q: A. Calculate the standard enthalpy change of the reaction in kJ. Is the process endothermic or exoth...

A: ∆H rxn = ∆H product - ∆H reactant ∆S rxn = ∆S product - ∆S reactat ∆G rxn = ∆H rxn - T∆S rxn

Q: *.Chemical reaction in primary batteries is Not reversed. O Reversed. O

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Q: Aluminum reacts in air with oxygen to form aluminum oxide. Write the balanced chemical equation.

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Q: Is ln2x an eigen function of d2/dx2 ?

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Q: See Pre-Lab question 2 in you lab manual on pg 45. lonic compounds and Octet Rule. Choose the correc...

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

Q: A virus has a mass of 9.0 x 10 12 mg and an oil tanker has a mass of 3.0 × 10´ kg. Use this informat...

A: Mass of virus = 9.0× 10^-12 mg Mass of tanker = 3.0× 10^7 kg