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1. Which term describes the solubility of a nonpolar substance, such as gasoline, in water?
- ANSWER Immiscible
2. Which term describes the solubility of a nonpolar covalent compound, such as hexane,
in water? - ANSWER Immiscible
3. A hot saturated solution is slowly cooled to room temperature so that all the solute
remains in the solution, exceeding the solute's maximum solubility limit at room
temperature. Which term best describes the solution formed? - ANSWER
Supersaturated
4. Beaker A contains 10 mg of calcium chloride dissolved in 100 mL of ethanol, and beaker
B contains 8 mg of calcium chloride dissolved in 100 mL of ethanol. When compared to
beaker B, which statement best describes the solution in beaker A? - ANSWER It is
more concentrated.
5. What is the molar concentration of a solution made by dissolving 2.5 moles of KCl in
enough water to produce 450 mL of solution? - ANSWER 5.6 M
6. If 35 grams of KCl are dissolved in 200.0 g of water to make a solution, what is the
percentage by mass of KCl in the solution? - ANSWER 15% KCl
, 7. What is the volume percentage of rose extract in a solution prepared by dissolving 20 mL
of rose extract in a solvent to make a 200 mL solution? - ANSWER 10%
8. Given a sodium ion (Na+) concentration of 3.5 molar, how many moles of NaCl will
present in 2.0 L of solution? - ANSWER 7.0 mol
9. When an aqueous solution of silver nitrate reacts with an aqueous solution of calcium
chloride, a solid silver chloride precipitate is formed along with aqueous calcium nitrate,
as shown in the balanced chemical equation that follows.
2AgNO3(aq) + CaCl2(aq) → 2AgCl(s) + Ca(NO3)2(aq)
10. How many grams of solid silver chloride can be produced from 2.50 L of 0.300 M silver
nitrate and excess calcium chloride?
Compound Formulas with Molar Masses
Calcium chloride
CaCl2
110.98
Calcium nitrate
Ca(NO3)2
164.10
Silver chloride
AgCl