A student mixes 120 cm3 of 1.50 mol dm-3 nitric acid (HNO3\text{HNO}_3HNO3) with 80 cm3 of 0.75 mol dm-3 hydrochloric acid (HCl\text{HCl}HCl).
What is the concentration of hydrogen ions, [H+(aq)][\text{H}^+(\text{aq})][H+(aq)], in the resulting mixture?
1.05 mol dm−31.05\text{ mol dm}^{-3}1.05 mol dm−3
1.13 mol dm−31.13\text{ mol dm}^{-3}1.13 mol dm−3
1.20 mol dm−31.20\text{ mol dm}^{-3}1.20 mol dm−3
2.25 mol dm−32.25\text{ mol dm}^{-3}2.25 mol dm−3
