Question

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. The Ka of HZ is ______. 1.2 × 10-5 6.9 × 10-9 1.4 × 10-10 9.9 × 10-2 2.8 × 10-12

          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. The Ka of HZ is ______.

1.2 × 10-5
6.9 × 10-9
1.4 × 10-10
9.9 × 10-2
2.8 × 10-12

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. The Ka of HZ is .

1.2 × 10-5
6.9 × 10-9
1.4 × 10-10
9.9 × 10-2
2.8 × 10-12

Added by Adri-N W.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Shaiju T

06/03/2022

Step 1

Given pH = 4.93 [H+] = 10^(-pH) [H+] = 10^(-4.93) [H+] = 1.117 x 10^(-5) mol/L Show more…

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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. The Ka of HZ is ______. 1.2 x 10-5 6.9 x 10-9 1.4 x 10-10 9.9 x 10-2 2.8 x 10-12