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WorksheetsGRADE REPLACEMENT- Unit 3: Solutions
Total questions: 15
Worksheet time: 17mins
How could you increase the rate of solvation for a solid solute?
Agitating the mixture
use small pieces of solute
increase the temperature of the solvent
all of the above answers will increase the rate of solvation.
measure of concentration the can be expressed as moles of solute per liters of solution
molality
Molarity
% by mass
concentration
The process by which solvent particles surround solute particles
dissociation
molarity
saturated
solvation
Which of the following solutions is the MOST concentrated?
1 M
1.5 M
2.0 M
2.5 M
What is the solvent in a sugar water solution?
sugar
neither
both
water
How can you increase the solubility of a gas?
stir the solution ( agitate)
decrease the pressure
decrease the temperature of the solvent
increase the temperature of the solvent
If more solute is added to a saturated solution....
some of the solute would dissolve
all of the solute would sink to the bottom undissolved
a chemical reaction will occur
everything will dissolve
How much KNO3 solute is saturated at 40 degrees?
75
55
65
85
At what temperature can you fully dissolve 140g of NaNO3?
62
73
81
You cannot determine this
What type of a solution is 60g NaNO3 at 40ºC in 100g H2O?
Saturated
Unsaturated
Supersaturated
What is the percent by mass of a solution made by dissolving 20.0 g of NaCl into 180.0 g of water?
10.0 %
11.1 %
80.0 %
20.0 %
What is occurring in the picture?
dissociation of salt, such as NaCl
crystallization of a supersaturated solution
solvation of sugar
evaporation of glucose
In a polar solvent, dissociation occurs when a solute is
ionic
covalent
liquid
nonpolar
