Find the Mass Percent of CaCl₂ in a Solution Whose

question 19

Multiple Choice

Find the mass percent of CaCl₂ in a solution whose molarity is 2.20 M and whose density is 1.18 g/mL.

• A)20.7%
• B)26.1%
• C)79.3%
• D)24.4%
• E)none of these

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Definitions:

Sum Of Squared Deviations

The total of the squared differences between each observation and the mean of the data set, used in statistical analysis to measure variability.

Sum Of Squares For Error

A measure used in statistical analysis to quantify the discrepancy between observed and expected values, summing the squares of these deviations.

Direct Relationship

A relationship between two variables in which they move in the same direction, meaning as one variable increases, the other also increases.

Independent Variable

A variable presumed to influence or cause changes in another variable, referred to as the dependent variable.