Calculate the Molality of a 15

question 24

Multiple Choice

Calculate the molality of a 15.0% by mass solution of MgCl₂ in H₂O. The density of this solution is 1.127 g/mL.

• A)0.157 m
• B)11.8 m
• C)1.86 m
• D)0.0134 m
• E)1.58 m

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Definitions:

Intervention Group

The group in an experimental study that receives the treatment or intervention being tested, as opposed to a control group.

Study Group

A collection of individuals brought together to participate in a research study or to collectively study a particular subject.

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.

Scientific Hypothesis

A testable prediction about the relationship between two or more variables, forming the basis for an experiment or observational study.