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

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?

244. The solubility of Sr(OH)₂ at 298 K is 19·23 g/L of solution. Calculate the concentrations of strontium and hydroxyl ions and the pH of the solution.

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