An industrial process requires a sulfuric acid feed with an effective hydronium-ion…
CHEMISTRY · Multi-part · A Level · Chemistry · Acids and bases · Acids and bases
Problem
An industrial process requires a sulfuric acid feed with an effective hydronium-ion concentration near 0.040 M. A chemist considers using a stock solution that is 0.020 M in H₂SO₄ at 25 °C, treating both acidic protons as completely released in water.
(a) Write the balanced chemical equation that shows complete dissociation of H₂SO₄ in aqueous solution under the chemist’s assumption.
(b) Based on the assumption in part (a), determine the hydronium-ion concentration that would result from the 0.020 M H₂SO₄ solution.
(c) Calculate the pH of the 0.020 M H₂SO₄ solution, expressing the result to three significant figures.