Four weak acids have the following values: , ,

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Four weak acids have the following

pK_a

values:

\text{HF}:3.17

\text{HNO}_2:3.37

\text{CH}_3\text{COOH}:4.76

, and

\text{HClO}:7.54

. Which option orders the acids from strongest to weakest? (a)

\text{HNO}_2>\text{CH}_3\text{COOH}>\text{HClO}>\text{HF}

(b)

\text{HF}>\text{HNO}_2>\text{CH}_3\text{COOH}>\text{HClO}

(c)

\text{HClO}>\text{CH}_3\text{COOH}>\text{HNO}_2>\text{HF}

(d)

\text{HNO}_2>\text{HF}>\text{CH}_3\text{COOH}>\text{HClO}