Organic Chemistry Answers

5 L of an alkene gas A require 150 L of air (20% v / v 𝑂2) for complete combustion. All gas volumes were measured under the same pressure and temperature conditions.

a) Determine the molecular formula of alkene A and write its structural isomers.

b) Alkene A reacts with water in the presence of acid to give organic compound B, which cannot change the color of solution 𝐾 𝐶𝑟 𝑂 / 𝐻 𝑆𝑂. Identify the syntax

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types of organic compounds A and B.

c) An amount of 14 g of alkene A reacts completely with solution 𝐵𝑟 in solvent τητας with a content of 8% w / v, whereupon organic compound C is produced.

Calculate:

i) The maximum volume of solution 𝐵𝑟 in solvent 𝐶𝐶𝑙 that decolorizes.

ii) The mass of organic compound C produced.

A certain amount of ethyne reacts completely with 𝛨2, in the presence of catalyst 𝑁𝑖. The saturated compound A produced is completely combusted with air (20% v / v 𝑂2), producing 17.6 g 𝐶𝑂2. Calculate:

a) The mass of ethyne and the mass of 𝛨2 that reacted.

b) The volume of air required for the complete combustion of A, measured in STP conditions.

What is the volume of 1kg of nitrogen gas (diatomic) at 24∘C and .98atm?

A 0.3126 g of oxalic acid, H₂C₂O_4, requires 26.1 ml of a particular concentration of NaOH(aq) to complete the following reaction. What is the molarity of the NaOH(aq)?

H₂C₂O₄(s) + NaOH(aq) → Na₂C₅O₄ (aq) + H_2O(I)

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The two common chlorides of phosphorus, PCI₃ and PCI_5, both important in the production of other phosphorus compounds, coexist in equilibrium through the reaction

PCI₃(g) + Cl₂(g) → PCI₅(g)

At 250°C, an equilibrium mixture in a 2.50 L flask contains 0.105g PCI_{5, }0.220g PCI₃ and 2.12g Cl_2. What are the values of (a) Kc and (b) Kp for this reaction at 250°C?

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Chronium (II) sulfate, CrSO4, is a reagent that has been used in certain applications to help reduce carbon-carbon double bonds (c=c) in molecules to single bonds (c-c). The reagent can be prepared by the following reaction.

Zn(s) + K2Cr2O7(aq) + H2SO4(aq) → ZnSO4(aq) + CrSO4(aq) + K2SO4(aq) + H2O

What is the maximum number of grams of CrSO4 that can be made from a reaction mixture containing 3.2 mol Zn, 1.7 mol K2Cr2O7 and 5.0 mol H2SO4? 

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CH3CO2H(1)+2O2(q)--------> 2CO2(q)+2H2O(1)

Solubilitatea acetanilidei în apă fierbinte este 5,5 g/100 mL la 100oC iar solubilitatea în apă rece la 0oC este 0,053 g/100 mL. Care ar fi procentul maxim teoretic de recuperare a acetanilidei prin cristalizarea a 5 g de acetanilidă din 100 mL apă presupunând că soluţia este răcită la 0oC. 

Oleic acid and elaidic acid are these isomers? If they are you should indicate it.

what type of alcohol is 2-methyl-2-pentanol