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WorksheetsSolutions Quiz Review
Total questions: 53
Worksheet time: 2hrs 57mins
Determine whether Al(OH)3 is soluble using Table F
Soluble
Insoluble
Determine whether Na2SO4 is soluble or insoluble using Table F
Soluble
Insoluble
Which substance is most soluble at 40 degrees Celsius?
KCl
KNO3
NaCl
NH3
Based on Reference Table G, what is the maximum number of grams of KCl(s) that will dissolve in 200 grams of water at 50°C to produce a saturated solution?
38 g
42 g
58 g
84 g
What is the total number of moles of solute in 250 milliliters of a 1.0 M solution of NaCl?
1.0 mole
0.25 mole
0.50 mole
42 moles
A saturated solution of NaNO3 is prepared at 60.ºC using 100. grams of water. As this solution is cooled to 10.ºC, NaNO3 precipitates (settles) out of the solution. The resulting solution is saturated. Approximately how many grams of NaNO3 settled out of the original solution?
46 g
61 g
85 g
126 g
Which of the following is NOT a solution?
the air you breathe
carbonated soda
nail polish mixed with acetone
milk
Determine whether Na2SO4 is soluble or insoluble using Table F
Soluble
Insoluble
Based on Reference Table F, which of the following saturated solutions would be the least concentrated?
sodium sulfate
potassium sulfate
copper (II) sulfate
barium sulfate
Which term refers to a substance that is capable of dissolving another substance?
solute
solvent
solution
Which solution contains EXACTLY the full amount of solute that can dissolve at a given temperature?
unsaturated
saturated
supersaturated
Which solution contains MORE than the full amount of solute that can dissolve at a given temperature?
unsaturated
saturated
supersaturated
Which solution contains LESS than the full amount of solute that can dissolve at a given temperature?
unsaturated
saturated
supersaturated
According to Reference Table F, which compound is most soluble in water?
BaCO3
BaSO4
ZnCO3
ZnSO4
Which compound is insoluble in water?
CaBr2
KBr
AgBr2
NaBr
Based on Reference Table G, what change will cause the solubility of KNO3(s) to increase?
decreasing the pressure
increasing the pressure
decreasing the temperature
increasing the temperature
Under which conditions of temperature and pressure is a gas most soluble in water?
high temperature and low pressure
high temperature and high pressure
low temperature and low pressure
low temperature and high pressure
An unsaturated aqueous solution of NH3 is at 90°C in 100. grams of water. According to Reference Table G, how many grams of NH3 could this unsaturated solution contain?
5 g
10 g
15 g
20 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?
29 g
24 g
12 g
4 g
Which phrase describes the molarity of a solution?
liters of solute per mole of solution
liters of solution per mole of solution
moles of solute per liter of solution
moles of solution per liter of solution
What is the total number of moles of NaCl(s) needed to make 3.0 liters of a 2.0 M NaCl solution?
6.0 mol
8.0 mol
1.0 mol
0.70 mol
An aqueous solution has a mass of 490 grams containing 0.0085 gram of calcium ions. The concentration of calcium ions in this solution is
4.3 ppm
8.5 ppm
17 ppm
34 ppm
How does a solution become supersaturated?
Vigorous stirring to dissolve more solute than usual.
Heat the solution to increase the solute then let it cool.
Add more solvent to lower the concentration.
Keep pouring solute in the solvent until it goes in.
Gases are more soluble at ______temps and _____pressures
high, low
low , high
high, high
low, low
Molality is defined as ________ divided by _____________
liters solution, mols solute
mols solute, liters solvent
kg solvent, mols solute
mols solute, kg solvent
Concentration is
the amount of solute in the solvent
the amount of solvent in the solute
density
particle size
Which of the following would result in being able to dissolve a greater amount of solid in a solution?
Lower the temperature.
Decrease the pressure of the solution.
Increase the pressure of the solution.
Heat the solution.
Which of the following statements is true?
An increase in temperature decreases the solubility of most solids, but increases the solubility of gases.
An increase in temperature increases the solubility of most solids and gases.
An increase in temperature decreases the solubility of most solids and gases.
An increase in temperature increases the solubility of most solids, but decreases the solubility of gases.
Which of the following examples is nonpolar & cannot form a solution because it is insoluble?
Kool Aid
an oil spill in the in the ocean
soda
salt water
Polarity of a solvent can best be described as:
ionized H3O+ molecules
like dissolves like
increased polarity increases the rate a solute dissolves in a solvent
Ionic solids will most likely dissolve in
H2O(l) which is a polar solvent
H2O(l) which is a nonpolar solvent
CCl4(l) which a polar solid
CCl4(l) which is a nonpolar solvent
Under which conditions of temperature and pressure is a gas most soluble in water?
high temperature and low pressure
high temperature and high pressure
low temperature and low pressure
low temperature and high pressure
A homogeneous mixture is the same thing as...
a solution
a heterogeneous mixture
a compound
an element
What does "like dissolves like" mean?
2 substances are ALIKE in terms of polarity and will dissolve in each other (e.g.; polar dissolves polar like salt in water and non-polar dissolves non-polar like Styrofoam in acetone)
2 substances are DIFFERENT in terms of polarity and will dissolve in each other (e.g.; polar dissolves non-polar like oil in water and non-polar dissolves polar like water in Styrofoam)
It doesn't matter what the SOLVENT is in terms of polarity (e.g.; Styrofoam will dissolve in either water or acetone)
It doesn't matter what the SOLUTE is in terms of polarity (e.g.; oil will dissolve in either ethanol or water)
In general, which solutes would dissolve in polar solvents?
non-polar ethanol molecules
ionic compounds (like salt-shown) and polar molecules (both have separation of electrical charges)
nonpolar carbon dioxide gas molecules
nonpolar methane gas molecules
Which of these solutes would form an electrolyte in aqueous solution?
Ethane, nonpolar
Carbon tetrafluoride, nonpolar
Boron trifluride, nonpolar
Table salt (Sodium chloride), ionic = charged particles
