A Solution Is Made by Dissolving 0

question 94

Multiple Choice

A solution is made by dissolving 0.100 mole NH₃ ( K _b = 1.8×10 ^{- 5}) and 0.200 mole of NH₄Cl in water and diluting to 1.00 L. What is the pH of the resulting solution?

• A) 8.95
• B) 11.12
• C) 2.72
• D) 13.00
• E) 5.04

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Definitions:

Payoff

The return or outcome received from an investment or decision, often used in context of financial transactions and game theory.

Risky Undertaking

An action or project that involves a high degree of uncertainty or danger regarding its outcome or success.

Expected Value

A calculation in probability and statistics that shows what to predict as the outcome on average over many trials.

Investment

The allocation of resources, typically money, with the expectation of generating an income or profit.