If a Solution Has a PH = 9

question 66

Multiple Choice

If a solution has a pH = 9.6, the [H⁺] is

• A) 2.5 × 10¹⁰
• B) 9.6 M
• C) 2.5 M
• D) 2.5 × 10 ^{− 10} M
• E) 9.6 × 10 ^{− 10} M

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Definitions:

Cross-Sectional Study

A study that analyzes data from a population at a specific point in time.

Case-Control Study

A type of observational study that compares individuals with a specific condition or disease (cases) to others who do not have the condition (controls), looking for factors that may contribute to the disease.

Longitudinal Study

A research design that involves repeated observations of the same variables over short or long periods of time to detect patterns, trends, or changes.

Experimental Design

A plan for conducting research that is structured to test hypotheses by controlling and manipulating variables to establish cause-and-effect relationships.