What Is the Concentration of [OH^-] in a 0

question 64

Multiple Choice

What is the concentration of [OH^-] in a 0.20 M solution of ammonia? The K_b value for ammonia is
1.8 *10^-5.

• A) 3.6 *10^-6 M
• B) 1.8 *10^-5 M
• C) 0.20 M
• D) 1.9 * 10^-3 M
• E) 4.2 *10^-4 M

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Definitions:

Estimate Slope

The technique for determining the approximate steepness or gradient of a line on a graph.

Graph

A diagram representing numerical values or relationships between numbers, often using lines, bars, or points on axes.

General Form

A way of writing equations that allows them to be represented in a standardized manner, often used with lines, circles, and other geometrical figures.

Slope

A measure of the steepness or inclination of a line, typically calculated as the ratio of the vertical change to the horizontal change between two points on the line.