To a `200 ml` of `0.1 M` weak aicd `HA` solution `90 ml` of `0.1 M` solution of `NaOH` be added. Now, what volume of `0.1 M NaOH` be added into above solution so that `pH` of resulting solution be `5`. `[K_(a)(HA)=10^(-5)]`

To a 100 mL of 0.1 M weak acid HA solution 22.5 mL of 0.2 M solution of NaOH are added.Now, what volume of 0.1 M NaOH solution be added into above solution, so that pH of resulting solution be 4.7: [Given : (K_b(A^(-))=5xx10^(-10)]

If 200 ml of 0.031 M solution of H _(2) SO_(4) is added to 84 ml of a 0.150 M KOH solution. What is the pH of the resulting solution? (log 7 = 0.845)

If 200 ml of 0.031 M solution of H _(2) SO_(4) is added to 84 ml of a 0.150 M KOH solution. What is the pH of the resulting solution? (log 7 = 0.845)

50 ml of 0.2 M HCl is added to 30 ml of 0.1 MKOH solution. Find the pH of the solution.

100 mL of 0.01 M solution of NaOH is diluted to 1 litre. The pH of resultant solution will be

On adding 20 ml of 0.1 N NaOH solution to 10 ml of 0.1 HCl, the resulting solution will

1 ml of 0.1 M HCl is added into 99 ml of water . Assume volumes are additive, what is pH of resulting solution .