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WorksheetsSolubility Curves
Total questions: 35
Worksheet time: 12mins
What do you call the maximum amount of solute that can dissolve in a solvent at a specific temperature?
solute
solvent
saturated
solubility
A solution in which the maximum amount of solute is dissolved is called
supersaturated
saturated
unsaturated
A solution in which more than the maximum amount of solute is dissolved is called
supersaturated
saturated
unsaturated
A solution in which more solute can still be dissolved is called
supersaturated
saturated
unsaturated
Is this solution saturated or unsaturated?
saturated
unsaturated
Every solute is affected the same way by changes in temperature.
True
False
As temperatures increase, most solutes become
more soluble
less soluble
As temperatures increase, which solute will become less soluble?
CO2 (g)
NaCl (s)
CuSO4 (s)
AgNO3 (s)
Which solute is more affected by changes in temperature?
KNO3
NH4Cl
they are affected the same
Which solute is more more soluble at 40 degrees Celsius?
KNO3
NH4Cl
Which solute is more more soluble at 70 degrees Celsius?
KNO3
NH4Cl
At what temperature do the solutes have the same solubility?
50 degrees Celsius
65 degrees Celsius
100 degrees Celsius
0 degrees Celsius
At what temperature is the solubility of NH4Cl 5.00 g?
55 degrees Celsius
50 degrees Celsius
45 degrees Celsius
At what temperature can you dissolve 5.00 g of potassium nitrate?
48 °C
60 °C
55 °C
65 °C
What is the solubility of KNO3 at 75 degrees Celsius?
6.50 g
7.00 g
7.50 g
8.00 g
What is the solubility of NH4Cl at 75 degrees Celsius?
6.50 g
7.00 g
7.50 g
6.00 g
How much ammonium chloride would you need to make a saturated solution at 50 C?
4.50 g
5.00 g
5.25 g
4.00 g
You dissolve 6.00 g of NH4Cl at 70 degrees Celsius. Is the solution saturated or unsaturated?
saturated
unsaturated
You dissolve 3.50 g of KNO3 at 40 degrees Celsius. Is the solution saturated or unsaturated?
saturated
unsaturated
You dissolve 6.00 g of NH4Cl at 70 degrees Celsius. How many more grams will you need to add in order for it to be saturated?
1.00 g more
0.25 g more
0.50 g more
2.00 g more
You dissolve 3.00 g of KNO3 at 45 degrees Celsius. How many more grams will you need to add in order for it to be saturated?
1.00 g more
0.25 g more
0.50 g more
2.00 g more
You cool a supersaturated solution of KNO3 from 90 degrees Celsius to room temperature, 20 degrees Clesius. How many grams will precipitate from the solution?
9.5 g
8.5 g
7.5 g
1.5 g
You cool a supersaturated solution of NH4Cl from 85 degrees Celsius to 45 degrees Celsius. How many grams will precipitate from the solution?
7.0 g
2.5 g
5.0 g
9.5g
All saturated solutions are also concentrated.
An unsaturated solution can also be concentrated.
Identify the most concentrated solution:
In a laboratory investigation, ammonium chloride was dissolved in water. Laboratory procedures and corresponding observations made by a student during the investigation are shown in the table below.
State evidence from the investigation that indicates the NH4Cl(aq) solution is saturated.
A solution occurs when the (a) is (b) in a (c) .
add more solvent to get the extra solute to dissolve
stir the solution very vigorously to get the extra solute to dissolve
heat a saturated solution until the extra solute dissolves, then cool it slowly
heat a saturated solution until the extra solute dissolves, then cool it quickly
Using the solubility curve decide whether 50g of NaCl dissolved in 100 of water at 60°C is unsaturated, saturated or supersaturated.
saturated
unsaturated
supersaturated
Using the solubility curve, decide whether 20g of KClO3 dissovled in 100g of water at 50°C is saturated, unsaturated or supersaturated.
saturated
unsaturated
supersaturated
At what temperature does 10 g of KClO3 make a saturated solution?
10 °C
30 °C
80 °C
18 °C
How many grams of Pb(NO₃)₂ does it take to make a saturated solution at 35°C ?
50g
80g
70g
35g
