WorksheetsSolutions Test Review
Total questions: 21
Worksheet time: 1hrs 11mins
Which barium salt is insoluble in water?
BaCO3
BaCl2
Ba(ClO4)2
Ba(NO3)2
According to Reference Table F, which of these compounds is most soluble at 298K and 1 atm?
AgNO3
AgCl
PbCrO4
PbCO3
The solubility of KClO3(s) in water increases as the
Temperature of the solution increases
Temperature of the solution decreases
Pressure on the solution increases
Pressure on the solution decreases
According to Reference Table G, how many grams of KNO3 would be needed to saturate 200grams of water at 70*C?
43 g
86g
134g
268g
Carbon dioxide gas is most soluble in water under conditions of
High pressure and low temperature
High pressure and high temperature
Low pressure and low temperature
Low pressure and high temperature
When PbI2(s) is added to Na2CO3(aq), a white precipitate is formed. According to Reference Table F, the white precipitate most likely is
KNO3
PbCo3
NaI
Na2CO3
As additional KNO3(s) is added to a saturated solution of KNO3 at constant temperature, the concentration of the solution
Decreases
Increases
Remains the same
One hundred grams of water is saturated with NH4Cl at 50*C. According to Talbe G, if the temperature is lowered to 10*C, what is the total amount of NH4Cl that will precipitate?
5.0g
17 g
30. g
50. g
A solution contains 35 grams of KNO3 dissolved in 100 grams of water at 40*C. How much more KNO3 would have to be added to make it a saturated solution?
29g
24g
12g
4g
What is the total number of grams of NH4Cl that will dissolved in 200 grams of water at 70*C?
60
70
100
120
What is the total number of moles of NaCl(s) needed to make 3.0 liters of a 2.0M NaCl solution?
6.0mol
8.0mol
1.0mol
0.70mol
How many moles of solute are contained in 200 milliliters of a 1M solution?
1
0.2
0.8
200
Which solution is the most concentrated?
1 mole of solute dissolved in 1 liter of solution
2 moles of solute dissolved in 3 liters of solution
6 moles of solute dissolved in 4 liters of solution
4 moles of solute dissolved in 8 liters of solution
What is the concentration of a solution, in parts per million, if 0.02 grams of Na3PO4 is dissolved in 1000 grams of water?
20pm
2 ppm
0.2ppm
0.02ppm
Compared to pure water, an aqueous solution of calcium chloride has a
High boiling point and higher freezing point
Higher boiling point and lower freezing point
Lower boiling point and higher freezing point
Lower boiling point and lower freezing point
Which solution will freeze at the lowest temperature?
1 mole of sugar in 500g of water
1 mole of sugar in 1000 g of water
2 moles of sugar in 500 g of water
2 moles of sugar in 1000g of water
Which 1-molal aqueous solution has the lowest freezing point?
A
B
C
D
Show a correct numerical setup for determining how many liters of a 1.2M solution can be prepared with 0.50 moles of C6H12O6.
According to Reference Table G, how many grams of KClO3 must be dissolved in 100 grams of H2O at 10*C to produce a saturated solution?
Naphthalene, a nonpolar substance that sublimes at room temperature, can be used to protect wool clothing from being eaten by moths. Explain why naphthalene is not expected to dissolve in water.
A student uses 200grams of water at a temperature of 60*C to prepare a saturated solution of potassium chloride, KCl. This solution is cooled to 10*C and the excess KCl precipitates (settles out). The resulting solution is saturated at 10*C. How many grams of KCl precipitated out of the original solution?
