Carboxylic acids：練習問題

When methanoic acid is added to a solution of sodium carbonate, a chemical reaction occurs. Which of the following is a product of this reaction?

When propanoic acid, \(CH_3CH_2COOH\), reacts with methanol, \(CH_3OH\), in the presence of a sulfuric acid catalyst, which set of products is formed?

Which of the following is the correct chemical formula for propanoic acid?

When ethanoic acid, \(CH_3COOH\), reacts with an alcohol in the presence of an acid catalyst, an ester and water are formed. What is the balanced chemical equation for the reaction between ethanoic acid and ethanol, \(C_2H_5OH\)?

When ethanoic acid, \(CH_3COOH\), reacts with methanol, \(CH_3OH\), in the presence of an acid catalyst, which type of organic compound is formed?

Write a balanced symbol equation for the reaction between ethanoic acid (\(CH_3COOH\)) and sodium carbonate (\(Na_2CO_3\)), and describe the positive result of the test for the gas produced.

Ethanoic acid (\(CH_3COOH\)) is a member of the carboxylic acid homologous series.
(a) When ethanoic acid dissolves in water, it forms a weak acidic solution. Explain the term 'weak acid' in terms of the ionization of the molecules and why the pH is different from a strong acid of the same concentration. (2 points)
(b) Write a balanced symbol equation for the reaction between ethanoic acid and sodium carbonate (\(Na_2CO_3\)). Include state symbols. (3 points)
(c) Carboxylic acids react with alcohols in the presence of an acid catalyst to produce esters. State two common uses for esters and identify the functional group that defines this homologous series. (2 points)