Examine the PH Scale Below

question 15

Multiple Choice

Examine the pH scale below.How does household bleach compare to household ammonia?

• A)Household ammonia has 100 times higher H⁺ concentration than household bleach.
• B)Household bleach has 10 times higher H⁺ concentration than household ammonia.
• C)Household bleach has 100 times higher H⁺ concentration than household ammonia.
• D)Household ammonia has 10 times higher H⁺ concentration than household bleach.

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Definitions:

External Validity

The extent to which the results of a study can be generalized or applied to other settings, populations, or times.

Internal Validity

The extent to which a study is able to produce evidence that its results are caused by the variables it is testing, free from external influence.

Correlational Method

A statistical technique used to determine the degree to which two variables are related without inferring a cause-and-effect relationship.

Confounding Variable

An extraneous variable in an experimental design that correlates with both the dependent and independent variables, potentially leading to a false assumption of causality.