Question

Determine the volume in milliliters of a 0.167 M NaOH solution needed to neutralize a 215 mL solution of 0.111 M HCl and 0.222 M H2SO4.

Answer 1

Volume of acid solution

Number of moles of

Number of moles of protons from complete ionisation of

Number of moles of

Number of moles of protons from

Total number of moles of protons

Number of moles of NaOH required to neutralise 0.1193 moles of protons

The concentration of NaOH solution is 0.167 M.

Volume of NaOH required

Hence, 715 mL of 0.167 M NaOH is needed to neutralise all the protons.