The Molarity of a Solution Prepared by Diluting 43

question 18

Multiple Choice

The molarity of a solution prepared by diluting 43.72 mL of 5.005 M aqueous K₂Cr₂O₇ to 500. mL is ________.

• A)57.2
• B)0.0044
• C)0.438
• D)0.0879
• E)0.870

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Definitions:

Random

Lacking pattern, purpose, or predictability, often used in the context of selecting items or events in a way that each has an equal chance of being chosen.

Average Age

The mean value of the ages of individuals in a particular group, calculated by summing their ages and dividing by the number of individuals.

Sampling Frame

The list or database from which a sample is drawn for a study, containing all the elements that define the population.

Quality Control

The practice of maintaining standards in manufactured products by testing a sample of the output against the specification.