A Solution of 3

question 130

Multiple Choice

A solution of 3.0 g of citric acid (C₆H₈O₇) dissolved in 70.0 g of water was found to have a density of 1.13 g/mL. The molarity of the solution was:

• A) 1.81 M
• B) 0.16 M
• C) 11 M
• D) 88 M
• E) 0.24 M

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Definitions:

Intelligence Quotient

A score derived from standardized tests designed to measure human intelligence.

IQ Score

A measure of a person's intelligence as indicated by an intelligence test, relative to the average for people of the same age.

Heritability Estimates

Statistical calculations that attempt to measure how much of the variation in a trait within a population can be attributed to genetic differences among individuals.

Fraternal Twins

Twins that develop from two different eggs fertilized by two different sperm, resulting in siblings that are genetically distinct.