Problem

Four weak acids have the following

pK_a

values. HF: 3.17 HNO

_2

: 3.37 CH

_3

COOH: 4.76 HClO: 7.54 Which of the following orders the acids from strongest to weakest? a)

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

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

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

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