The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.

242. 0·049g H₂SO₄ acid is dissolved in water to prepare 200 ml solution. Calculate the pH of the solution.

What is the pH of an aqueous solution with hydrogen ion concentration equal to 3 × 10^–5.mol L^–l ? Is the solution acidic, basic or neutral?

Calculate the pH of the following solutions:
(a) 2g of TIOH dissolved in water to give 2 litres of solution.
(b) 0.3g of NaOH dissolved in water to give 200 mL of solution.

Calculate the pH of 1 ml of 13.6 MHCl diluted with water to give 1 litre of the solution.

If 0.561 KOH is dissolved in water to give 200 mL, of the solution at 298 K, calculate the concentration of potassium, hydrogen and hydroxyl ions. What is its pH ?

Calculate the pH of the resultant mixtures:
(a) 10 mL of 0·2 M Ca(OH)₂ + 25 mL of 0·1M HCl

(b) 10 mL of 0·01 M H₂SO₄ + 10mLof 0·01 IM Ca(OH)₂

(c) 10mL of 0·1 M H₂SO₄ + 10mL of 0·1 M KOH