Calculate the pH when 25.0 cm3 of 0.10 mol dm-3 of HNO3 is added to 10.0 cm3 of 0.20…
CHEMISTRY · Multi-part · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Calculate the pH when 25.0 cm3 of 0.10 mol dm-3 of HNO3 is added to 10.0 cm3 of 0.20 mol dm-3 KOH by following this sequence of steps:
(1) Calculate the number of moles of H+ used.
(2) Calculate the number of moles of OH- used.
(3) Identify whether H+ or OH- is in excess and calculate the amount of excess remaining.
(4) Calculate the concentration of excess H+ or OH- in the solution.
(5) Calculate the pH of the solution.