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Introductory Chemistry Study Set 7
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Introductory Chemistry Study Set 7
Chemistry
Quiz 11 :
Solutions
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Quiz 11 :
Solutions
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Solutions have a higher boiling point than pure solvents.
Free
True False
Q01
Answer:
Answer:
True
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Solutions exist in all phases of matter.
Free
True False
Q02
Answer:
Answer:
True
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Solutions have a lower vapor pressure than the pure solvent.
Free
True False
Q03
Answer:
Answer:
True
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The freezing point of a 0.5 m solution of NaCl is water is less than 0°C.
True False
Q04
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CH
3
OH is not soluble in water
True False
Q05
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Solutions have a higher freezing point than their pure solvents.
True False
Q06
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A solution is made by mixing 2.00 mol of solute and 15.0 mol of solvent. The mole fraction of the solute is 0.133
True False
Q07
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Molarity of a solution is the number of moles of solute divided by the milliliters of the solution.
True False
Q08
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NaOH will be more soluble in CCl
4
than H
2
O.
True False
Q09
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The boiling point of a 5.00 m solution of C
6
H
4
Cl
2
in CCl
4
is 101.6°C. Assume that C
6
H
4
Cl
2
is not volatile and K
b
= 4.95°C/m.
True False
Q10
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The freezing point of a 1.9 m solution of NaCl in H
2
O is -3.5°C if K
f
= 1.86°C/m.
True False
Q11
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Molality refers to the number of moles of solute per gram of solvent.
True False
Q12
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Which of the following terms refer to the major component of a solution?
Multiple Choice
Q13
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The van't Hoff factor for CaCO
3
is 2.
True False
Q14
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The van't Hoff factor for CCl
4
is 5.
True False
Q15
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For ionic solutions, the total ion concentration is the sum of the individual ion concentrations.
True False
Q16
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In both dilution and concentration, the amount of solute stays the same.
True False
Q17
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The molarity of a solution is 25 M if 5.0 moles of the solute is present in 5.0. liters of the solution.
True False
Q18
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Osmotic pressure is the tendency of a solution to pass solution through a semipermeable membrane due to concentration differences.
True False
Q19
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If 25.0 mL of a 1.0 M solution is diluted to 50.0 mL, the concentration becomes 0.50 M.
True False
Q20
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