Unit 4a Basic Knowledge Quiz
A quiz on the basic knowledge required in this unit.
- 1.
The process of adding more solvent to a solution is called ________.
- 2.
Molality = moles / kg of ______
- A.
Solute
- B.
Solute
- C.
Sevilla
- D.
Solvent
Correct Answer
D. Solvent -
- 3.
The units used for "change in boiling point" or "change in freezing point" must be in kelvin.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
As it is "change" of temperature, we can use both kelvin and degrees.Rate this question:
-
- 4.
Kb is called the ___________ constant.
- A.
Boilingoscopic
- B.
Ebulliarscopic
- C.
Ebullioscopic
- D.
Bulloscopic
Correct Answer
C. Ebullioscopic -
- 5.
What is the cryoscopic constant for water?
- A.
18.6
- B.
1.86
- C.
186
- D.
0.186
Correct Answer
B. 1.86 -
- 6.
We add salt to water on the roads so that the freezing point increases.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
We do it to decrease the freezing point so that the water does not freeze in cold temperatures.Rate this question:
-
- 7.
Osmosis is the movement of a ________ from an area of low concentration to an area of ______ concentration.
- A.
Solvent; high
- B.
Low; solute
- C.
High; low
- D.
Solvent; low
- E.
Solute; solvent
- F.
Solution; high
Correct Answer
A. Solvent; high -
- 8.
Osmotic pressure is the pressure required to stop the process of osmosis from occuring.
- A.
True
- B.
False
Correct Answer
A. True -
- 9.
Moles = _____ / molecular mass
- A.
Moles
- B.
Molar mass
- C.
Mass
- D.
Mr Canning
Correct Answer
C. Mass -
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Current Version
-
Mar 22, 2022Quiz Edited by
ProProfs Editorial Team -
Jan 07, 2016Quiz Created by
MrCanning
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