What is the value of K_b for the formate anion,HCOO^- ? K_a (HCOOH)= 2.1 × 10^-⁴ A)(^-2.1 × 10^-⁴) B)2.1 × 10^-⁴ C)6.9 × 10^-⁶ D)4.8 × 10^-¹¹ E)2.1 × 10^-¹⁸

Question

Quizplus · Accepted Answer

The relationship between K_a and K_b for a conjugate acid-base pair is K_w = K_a × K_b, where K_w is the ion-product constant of water (1.0 × 10^-14 at 25°C). Solving for K_b, we get K_b = K_w / K_a = (1.0 × 10^-14) / (2.1 × 10^-4) = 4.8 × 10^-11.

What Is the Value of Kb for the Formate Anion,HCOO-

What Is the Value of K_b for the Formate Anion,HCOO^-