Chapter 13: Problem 37
What are colligative properties? What is the meaning of the word "colligative" in this context?
Chapter 13: Problem 37
What are colligative properties? What is the meaning of the word "colligative" in this context?
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Get started for freeThe concentrated sulfuric acid we use in the laboratory is 98.0 percent \(\mathrm{H}_{2} \mathrm{SO}_{4}\) by mass. Calculate the molality and molarity of the acid solution. The density of the solution is \(1.83 \mathrm{~g} / \mathrm{mL}\).
Give two examples of a volatile liquid and two examples of a nonvolatile liquid.
Hydrogen peroxide with a concentration of 3.0 percent \(\left(3.0 \mathrm{~g}\right.\) of \(\mathrm{H}_{2} \mathrm{O}_{2}\) in \(100 \mathrm{~mL}\) of solution) is sold in drugstores for use as an antiseptic. For a \(10.0-\mathrm{mL}\) 3.0 percent \(\mathrm{H}_{2} \mathrm{O}_{2}\) solution, calculate (a) the oxygen gas produced (in liters) at STP when the compound undergoes complete decomposition and (b) the ratio of the volume of \(\mathrm{O}_{2}\) collected to the initial volume of the \(\mathrm{H}_{2} \mathrm{O}_{2}\) solution.
Define ion pairs. What effect does ion-pair formation have on the colligative properties of a solution? How does the ease of ion-pair formation depend on (a) charges on the ions, (b) size of the ions, (c) nature of the solvent (polar versus nonpolar), (d) concentration?
Basing your answer on intermolecular force considerations, explain what "like dissolves like" means.
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