Which of the Following Statements Is/are Correct

question 16

Multiple Choice

Which of the following statements is/are correct?
i.The molar mass of carbon-12 is exactly 12 g.
ii.The phrase "molar mass of chlorine" is ambiguous.
iii.The molar mass of a substance is the mass in grams of 6.02 × 10²³ particles of that substance.
iv.For atoms,molar mass is numerically equal to atomic mass.
v.The molar masses of elements are always greater,numerically,than the atomic masses of those elements.

• A)i only
• B)i and ii
• C)i,iii and iv
• D)i and v
• E)ii and v

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Definitions:

Rho

In statistics, a measure of correlation (denoted as ρ) indicating the strength and direction of a linear relationship between two variables.

Degrees of Freedom

Refers to the number of scores in a calculation that are free to vary when estimating a parameter.

Calculating

The action of performing mathematical operations to determine a result.

Significant Correlations

Relationships between variables that are strong enough to unlikely be due to chance, as determined by statistical tests.