Calculate the PH of a 2

question 49

Multiple Choice

Calculate the pH of a 2.0 × 10^-7 M solution of Ca(OH) ₂.

• A) 6.62
• B) 7.30
• C) 6.37
• D) 7.38
• E) 7.63

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Definitions:

Normally Distributed

Refers to a bell-shaped distribution that is symmetrical about its mean, often used as a model in statistics for real-valued random variables.

Standard Deviation

An indicator used to determine the extent of fluctuation or scatter among data points in a collection.

Central Limit Theorem

A statistical theory that states that given a sufficiently large sample size from a population with a finite level of variance, the mean of all samples from the same population will be approximately equal to the mean of the population.

Sampling Distribution

The distribution of a statistic (like the mean) that would result from taking a large number of samples from a population.