Citric acid occurs in lemon juice. $\text{HO}_2\text{CCH}_2\text{C(OH)(CO}_2\text{H)CH}_2\text{CO}_2\text{H}$ Calculate the volume of $0.4\,\text{mol dm}^{-3}$ sodium hydroxide solution needed to neutralise a solution containing $0.005\,\text{mol}$ of citric acid?
- A$12.5\,\text{cm}^3$
- B$25.0\,\text{cm}^3$
- C$37.5\,\text{cm}^3$
- D$50.0\,\text{cm}^3$