Question: hz is a weak acid?
Answer: Hz is a weak acid. an aqueous solution of hz is prepared by dissolving 0.020 mol of hz in sufficient water to yield 1.0 l of solution. the ph of the solution was 4.93 at 25.0 °c. ... an aqueous solution of hz is prepared by dissolving 0.020 mol of hz in sufficient water to yield 1.0 l of solution.