CAPE Chemistry Unit 2 · 2017 · Paper 1 · Question Q30

It takes 5\text{ cm}^3 of 1.4\text{ M NaOH} to neutralize 150\text{ cm}^3 of \text{HCl} with an unknown concentration. What was the original concentration of the acid?

1. (A)0.47\text{ M}
2. (B)0.047\text{ M}
3. (C)0.014\text{ M}
4. (D)0.0014\text{ M}