
Chapter 11 concepts quiz
Authored by Frida Murillo
Chemistry
University
NGSS covered
Used 8+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the mole fraction of NaCl in a solution prepared by dissolving 117 g NaCl in 1.11 kg H2O.
1.57 × 10–2
9.91 × 10–1
6.29 × 10–2
3.15 × 10–2
1.12 × 10–2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Shaving cream is an example of which colloid type?
sol
aerosol
foam
emulsion
coagulate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solution of hydrogen peroxide is 26.3% H2O2 by mass and has a density of 1.11 g/cm3. The molarity of the solution is:
8.95 M
0.292 M
8.06 M
none of these
8.58 M
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following concentration measures will change in value as the temperature of a solution changes?
all of these
molarity
mole fraction
molality
mass percent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A liquid-liquid solution is called an ideal solution if:
I. It obeys PV = nRT.
II. It obeys Raoult's law.
III. Solute-solute, solvent-solvent, and solute-solvent interactions are very similar.
IV. Solute-solute, solvent-solvent, and solute-solvent interactions are quite different.
I, II, IV
II, III
I, III, IV
II, IV
I, II, III
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following favors the solubility of an ionic solid in a liquid solvent?
all of these
none of these
a large magnitude of the solvation energy of the ions
a small magnitude of the lattice energy of the solute
a large polarity of the solvent
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solid Ca(CH3COO)2 is dissolved in a nearly saturated solution of Ca(CH3COO)2, the solution becomes warmer. This information indicates that if the temperature of a solution is decreased:
The solubility of Ca(CH3COO)2 will increase.
ΔH will become negative.
The solubility of Ca(CH3COO)2 will decrease.
The solubility of Ca(CH3COO)2 will not change.
ΔH will become zero.
Tags
NGSS.HS-PS1-5
NGSS.HS-PS3-4
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