What Is the Value of K_b for the Formate Anion

question 5

Multiple Choice

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

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Definitions:

Rational Expression

A ratio of two polynomial expressions, with a non-zero denominator.

Simplify

To reduce an expression or equation to its simplest form by performing all possible operations and combining like terms.

Shaded Portion

The part of a diagram or graph that is marked with a pattern or color to indicate it is different from the rest, often related to probability, geometry, or statistics.

Total Area

The entire surface area of a two-dimensional shape or the combined surface areas of all faces of a three-dimensional object.