A sample of is accidentally mixed with of NaOH

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

20.0\,\text{mL}

sample of

0.200\,\text{M}

\mathrm{H_2SO_4}

is accidentally mixed with

10.0\,\text{mL}

0.100\,\text{M}

NaOH. The resulting mixture is titrated to equivalence with

0.250\,\text{M}

NaOH. What additional volume of the

0.250\,\text{M}

NaOH must be delivered from the buret to reach the equivalence point? (a) 12.0 mL (b) 28.0 mL (c) 32.0 mL (d) 24.0 mL