Multiple Choice
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1.
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Which of the following solutions has the greatest osmolarity?
A) | 0.30 M Al(NO3)3 | B) | 0.50 M NaCl | C) | 1.0 M
C6H12O6 | D) | 0.35 M
Na2CO3 |
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2.
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Which compound below would NOT precipitate from an aqueous solution during a
reaction?
A) | AgCl | B) | AlPO4 | C) | CuCO3 | D) | Cu(NO3)2 |
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3.
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A sample of oxygen gas with a volume of 2.0 L has its absolute temperature
halved while its pressure is doubled. What is the new volume of the gas?
A) | 1.0 L | B) | 2.0 L | C) | 4.0
L | D) | 0.5 L |
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4.
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How many grams of H3BO3 are needed to prepare 250 mL of
0.125 M solution?
A) | 1.93 g | B) | 3.09 g | C) | 0.505
g | D) | 0.312 g |
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5.
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When barium hydroxide, Ba(OH)2 and HCl are combined, what is the
precipitate that forms?
A) | BaH2 | B) | H2O | C) | BaCl2 | D) | No precipitate
forms |
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6.
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What volume will 69.0 g of Ar occupy at 0.992 atm and 75 °C?
A) | 10.7 L | B) | 49.7 L | C) | 52.2
L | D) | 33.8 L |
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7.
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The addition of a crystal of NaCl to a solution of NaCl causes additional
crystals to form. The original solution was
A) | saturated | B) | unsaturated | C) | supersaturated | D) | dilute |
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8.
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Which of the following solvents would you expect iodine (I2) to be
soluble in?
A) | CCl4 | B) | C2H5OH | C) | water | D) | CH2Cl2 |
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9.
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A sample of propane has a volume of 35.3 L at 315 K and 922 mmHg. What is
its volume at STP?
A) | 49.2 L | B) | 33.6 L | C) | 37.1
L | D) | 25.2 L |
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10.
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What is the final volume of a solution prepared by diluting 25 mL of 8.25M NaOH
solution to a concentration of 2.40 M?
A) | 210 mL | B) | 86 mL | C) | 60
mL | D) | 330 mL |
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11.
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How many mL of 6.0 M sulfuric acid must be used to prepare 500. mL of 0.20 M
sulfuric acid solution
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12.
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If 5.00 g of NaCl are dissolved in 25.0 g of water, the percent mass (m/m) of
this soluton is
A) | 20.0 | B) | 16.7 | C) | 0.20 | D) | none of the
above |
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13.
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What is the osmolarity of a 0.25M solution of sodium acetate
(NaC2H3O2)?
A) | 1.0 osmol | B) | 0.75 osmol | C) | 0.25
osmol | D) | 0.50 osmol |
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14.
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What is the volume at STP occupied by 10.3 g of nitrogen gas?
A) | 16.5 L | B) | 8.24 L | C) | 12.9
L | D) | 231 L |
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15.
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What volume of 0.300 M KCl solution will contain 15.3 g of KCl?
A) | 61.5 mL | B) | 1.46 L | C) | 4.60
L | D) | 684 mL |
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