An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution would (Given ):

Question

Canvas Classes · Accepted Answer

Step 1: Find initial concentration

Step 2: Effect of dilution

Adding equal volume of water → concentration becomes half:

Step 3: Calculate new pH

Answer: (b) increase to 1.3

Note: Dilution of an acid always increases pH (becomes less acidic).

More questions from Ionic Equilibrium