Chem 1075 Chapter 14 Solutions Learning Goals / Study Guide
Suggested Homework:
Old 4th Edition:
Exercises: 7, 9, 11, 15, 17, try 19 (hint: large numbers of nonpolar C & H can win out over small
numbers of O, making the overall molecule look nonpolar), 27, 29, 31, 33, 35, 37, 39, 41, 43,
47, 49, 51, 53, 57, 59, 65, 81
New 5th Edition:
Exercises p. 409 7-19odd, 25-43odd, 47-53odd, 57, 59, 65, 79
Ch. 14 Self-Test p. 413 All but 1, 11 and 12
Key Concepts p. 408 2-6, 11 only
Key Terms p. 409 to review definitions
Learning Goals:
1. Omit Sec. 14.1 on Gases in Solution
2. Be able to identify if a substance is polar or nonpolar
3. Use the “Like dissolves like” rule to determine if two substances will form a solution
a) Use terminology “miscible” or “immiscible” for predicting liquid in a liquid
b) Use terminology “soluble” or “insoluble” for predicting solid in a liquid
4. What 3 things can increase the rate of dissolving?
5. If given the solubility of a substance, determine if a solution is saturated, unsaturated or supersaturated.
6. Know how to use the % by Mass equation:
a) if given g solute and g solvent; find % by mass
b) if given % by mass and g solution; find g solute
c) if given g solute and % by mass; find g solution
7. Know how to use the Molarity equation (M = mol/L):
a) if given g solute and mL of solution, find molarity (use solute identity for molar mass)
b) if given molarity and mL of solution, find g solute (use solute identity for molar mass)
c) if given molarity and moles solute, find volume of solution
d) if given molarity and volume of solution, find moles solute
8. What changes and does not change during the dilution of a solution?
9. Be able to use the McVc = MdVd equation to determine how to dilute a more concentrated solution.
10. Omit Sec. 14.11
Extra practice:
1. Identify each of the following liquids as polar (P) or nonpolar (NP):
_____a) carbon disulfide CS2 (linear) _____d) acetone CH3COCH3
_____b) water _____e) pentane C5H12
_____c) methanol CH3OH _____f) acetic acid CH3COOH
2. Tell if each of the following pairs would form solutions or not by using “miscible”, “immiscible”,
“soluble” or “insoluble”. See above for some information.
a) pentane in methanol _______________________
b) calcium carbonate solid in carbon disulfide ______________________
c) acetone in water _______________________
d) iodine solid (I2) in pentane _______________________
Answers: 1a) NP, b) P, c) P, d) P, e) NP, f) P, 2a) NP P so immiscible; 2b) I NP so insoluble; 2c) P = P so soluble; 2d) NP = NP so soluble
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