Acids and bases (A-level only)

A strong acid $H2Y\text{H}_2\text{Y}$ dissociates completely in aqueous solution:

\text{H}_2\text{Y}(\text{aq}) \rightarrow 2\text{H}^+(\text{aq}) + \text{Y}^{2-}(\text{aq})

What is the $pH\text{pH}$ of a 0.025 mol dm^-3 solution of this acid?

$1.12$

$1.30$

$1.60$

$2.00$

A strong acid $H2Y\text{H}_2\text{Y}$ dissociates completely in aqueous solution:

\text{H}_2\text{Y}(\text{aq}) \rightarrow 2\text{H}^+(\text{aq}) + \text{Y}^{2-}(\text{aq})

What is the $pH\text{pH}$ of a 0.025 mol dm^-3 solution of this acid?

$1.12$

$1.30$

$1.60$

$2.00$

Acids and bases (A-level only) Questions