The equation for the reaction between methanoic acid and ethanol in the presence of a catalyst can be represented as shown. $$\[ \mathrm{HCOOH}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH} \rightleftharpoons \mathrm{X}+\mathrm{H}_{2} \mathrm{O} \quad \Delta \mathrm{H}=-29.5 \mathrm{~kJ} / \mathrm{mol} \]$$ $$$\mathbf{X}$$$ represents the ester formed. In the equation, methanoic acid is represented by the formula HCOOH . Name this type of formula. ................................................................................................................................... (ii) Write the empirical formula of methanoic acid. ...................................................................................................................................

Chemistry

IGCSE&ALevel

CAIE

Exam No：0620_m24_qp_42 Year：2024 Question No：4(a)

Answer:

11.7.1.1. metals

11.7.1.2. bases

11.7.1.3. carbonates including names and formulae of the salts produced

11.7.2.1. with acidified aqueous potassium manganate(VII)

11.7.2.2. by bacterial oxidation during vinegar production

11.7.3. Describe the reaction of a carboxylic acid with an alcohol using an acid catalyst to form an ester