Question

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.

Answer 1

a) Molecular Formula =$C_2H_4$

b) They are Alkenes

c) i) The maximum volume of solution 𝐵𝑟=79mL

ii)The mass of organic compound C=34.5g