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2013 USNCO Problem 2: Quantitative Description

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May 23, 2013
Garbageurine

Problem Statement

A solution of \ce{KNO3} in water is prepared for which the following data have been obtained: masses of solute and solvent \text{masses of solute and solvent} molar masses of solute and solvent \text{molar masses of solute and solvent}
Which of these quantitative descriptions of the solution can be determined?
I. molarity II. molality III. density of solution \text{I. molarity II. molality III. density of solution}
<spanclass=′latex−bold′>(A)</span>I. only<spanclass=′latex−bold′>(B)</span>II. only<spanclass=′latex−bold′>(C)</span>I. and II. only<spanclass=′latex−bold′>(D)</span>I., II. and III. <span class='latex-bold'>(A) </span>\text{I. only}\qquad<span class='latex-bold'>(B) </span>\text{II. only}\qquad<span class='latex-bold'>(C) </span>\text{I. and II. only}\qquad<span class='latex-bold'>(D) </span>\text{I., II. and III.}\qquad
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