13. Solutions

Solutions: Solubility and Intermolecular Forces

Multiple Choice
Which of the following statements is/are true?
I. The hydrocarbon methane (CH₄) will dissolve completely in acetone (CH₃COCH₃).
II. Ammonia (NH₃) will form a heterogeneous mixture with carbon tetrachloride (CCl₄).
III. Pentane (C₅H₁₂) will form a homogeneous mixture with carbon tetrabromide (CBr₄).
IV. Methanethiol (CH₃SH) is miscible in fluoromethane (CH₃F).
Textbook Question
Match the diagrams with the following: (9.1)
b. a nonpolar solute and a polar solvent
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Multiple Choice
Two pure chemical substance are likely to mix and form a solution if:
Multiple Choice
Which of the following solutes will most readily dissolve in H₂O?
Textbook Question
Which of the following pairs of substances would you expect to form solutions? a. CCl₄ and water b. Benzene (C₆H₆) and MgSO₄ c. Hexane (C₆H₁₄) and heptane (C₇H₁₆) d. Ethyl alcohol (C₂H₅OH) and heptanol (C₇H₁₅OH)
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Multiple Choice
Indicate the most important type of intermolecular attraction responsible for solvation in the following solution:
Methanol, CH₃OH, dissolved in ethanol, CH₃CH₂OH
Textbook Question
Why does water not dissolve motor oil?
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Textbook Question
Water is a polar solvent and carbon tetrachloride (CCl₄) is a nonpolar solvent. In which solvent is each of the following, which is found or used in the body, more likely to be soluble? d. cholesterol (lipid), nonpolar
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Multiple Choice
Which of the following statements is/are true?
a) Methane will dissolve completely in acetone, CH₃COCH_3.
b) Hydrofluoric acid (HF) will form a heterogeneous mixture with tetrachloride, CCl₄.
c) Pentane will form a homogeneous mixture with CBr₄.
d) Methanethiol (CH₃SH) is miscible in fluoromethane (CH₃F).
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Textbook Question
Describe the formation of an aqueous KI solution, when solid KI dissolves in water.
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