Seawater Has a Hydroxide Ion Concentration of 2

question 3

Multiple Choice

Seawater has a hydroxide ion concentration of 2.0 × 10−⁶ M.What is the pH of seawater?

• A) −8.30
• B) 5.70
• C) 6.99
• D) 7.53
• E) 8.30

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Definitions:

Mean

A measure of central tendency calculated by dividing the sum of all values in a dataset by the number of values.

Standard Normal Random Variable

A normal distribution with a mean of 0 and standard deviation of 1, used as a reference to determine probabilities for normal distributions.

Negative Value

A value less than zero, representing quantities opposite in direction or position to a reference point.

Z-score

A measurement of how many standard deviations a data point is from the mean of a data set.