What Is the Concentration (M)of a NaCl Solution Prepared by Dissolving

question 157

Multiple Choice

What is the concentration (M) of a NaCl solution prepared by dissolving 5.3 g of NaCl in sufficient water to give 115 mL of solution?

• A) 0.091 M
• B) 5.3 M
• C) 0.79 M
• D) 5.5 M
• E) 0.115 M

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Definitions:

Causal

Relating to cause and effect; implying or concerned with the relationship between causes and their outcomes.

Control Variable

In research, a variable that is held constant to test the relative impact of an independent variable on a dependent variable.

Association

A connection or relationship between two or more variables, where changes in one variable correspond to changes in another.

Mean

In statistics, it is the arithmetic average of a set of numbers, calculated by adding them all up and dividing by the number of numbers.