If the PH of a Solution Is Decreased from 9

question 26

Multiple Choice

If the pH of a solution is decreased from 9 to 8, it means that the

• A)concentration of H⁺ has decreased to one-tenth (1/10)what it was at pH 9.
• B)concentration of H⁺ has increased 10-fold (10X)compared to what it was at pH 9.
• C)concentration of OH⁻ has increased 10-fold (10X)compared to what it was at pH 9.
• D)concentration of OH⁻ has decreased to one-tenth (1/10)what it was at pH 9.
• E)Both B and D are correct.

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Definitions:

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure the effect of the treatment on the experimental group.

Human Participants

Individuals who take part in research studies or experiments, contributing data through their actions, behaviors, or biological samples.

Debrief Participants

A process used in research studies where participants are informed about the study's purpose, procedures, and outcomes after their participation is complete.

Deception

The act of misleading or falsely convincing others that a particular reality exists, when it does not.