Chemistry

Problem

50 \text{ cm}^3

0.150 \text{ mol dm}^{-3}

potassium hydroxide solution react with

20.00 \text{ cm}^3

of phosphoric(V) acid,

\text{H}_3\text{PO}_4

, of concentration

0.0656 \text{ mol dm}^{-3}

. Deduce the equation for the reaction.