What is the concentration of h+ ions in a solution of hydrochloric acid that was prepared by diluting 35.0 ml of concentrated (11.6 m ) hcl to a final volume of 500.0 ml?
Hydrochloric acid ionisation is as follows; HCl ---> H⁺ + Cl⁻ HCl is a strong base so there's complete dissociation of acid to H⁺ ions The number of HCl moles is equivalent to number of H⁺ ions present 1 L of solution contains - 11.6 moles of H⁺ ions In 35 ml number of moles - 11.6 mol/L / 1000 ml x 35 ml = 0.406 mol This number of moles are dissolved in 500 ml therefore molarity = 0.406 mol /500 ml x 1000 ml = 0.812 M
