Which of the Following Is the Correct Hydroxide Ion Concentration

question 72

Multiple Choice

Which of the following is the correct hydroxide ion concentration in 0.48 M CH₃CO₂^-(aq) ? (K_b of CH₃CO₂^- = 5.6 × 10^-10)

• A) 2.7 × 10^-10 M
• B) 6.2 × 10^-10 M
• C) 1.1 × 10^-5 M
• D) 1.6 × 10^-5 M
• E) 2.4 × 10^-5 M

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Definitions:

P-value

The probability of observing a test statistic as extreme as, or more extreme than, the value observed, under the assumption that the null hypothesis is true.

Test Statistic

A value calculated from sample data that is used to make decisions about a population parameter in hypothesis testing.

Kruskal-Wallis Test

A statistical test that doesn't rely on parameter assumptions to evaluate if notable differences exist between two or more independent variable groups, focusing on a continuous or ordinal dependent variable.

Distribution

The spread of values of a variable or the frequencies of occurrence of different possible outcomes in a dataset.