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Found problems: 1

2013 National Chemistry Olympiad, 2
Tags: garbage , urine
A solution of $\ce{KNO3}$ in water is prepared for which the following data have been obtained: \[ \text{masses of solute and solvent} \] \[ \text{molar masses of solute and solvent} \] Which of these quantitative descriptions of the solution can be determined? \[ \text{I. molarity II. molality III. density of solution} \] $ \textbf{(A) }\text{I. only}\qquad\textbf{(B) }\text{II. only}\qquad\textbf{(C) }\text{I. and II. only}\qquad\textbf{(D) }\text{I., II. and III.}\qquad$