11.2. Naming organic compounds
A subsection of Chemistry, 5070, through 11. Organic chemistry
Listing 10 of 53 questions
Ester A has the structure shown. C O C C C C H H O H H H H H H C H H H H Name ester A. Ester A reacts with hot aqueous sodium hydroxide to give two compounds, B and C. Compound B has the percentage composition by mass: 29.3% carbon; 3.7% hydrogen; 39.0% oxygen; 28.0% sodium. Calculate the empirical formula for this compound. Compound C has a relative molecular mass of 74 and is oxidised by warm acidified potassium manganate(to give butanoic acid. Suggest a structure for C. Give reasons for your answer. What is meant by the term isomerism? Draw an isomer of ester A. Explain why ester A is a saturated compound. Ester A can be used as a fragrance or perfume because it diffuses easily. Explain why the rate of diffusion of the ester decreases as the temperature decreases. Suggest one other use for ester A.
5070_s18_qp_22
THEORY
2018
Paper 2, Variant 2
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