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WorksheetsSummer School Solution Exam Practice
Total questions: 208
Worksheet time: 9hrs 17mins
Which of the following is the Dilution Formula?
V1M1 = V2M2
M = m/V
V = mT
PV = nRT
A dilution is when
solute is added to the volume of solution
water is added to the volume of solution
solute is removed from the volume of solution
water is removed from the volume of solution
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250.0 mL?
15.9 M
0.636 M
0.642 M
1.59 M
If I have 340.0 mL of a 0.500 M NaBr solution, what will the concentration be if I add 560.0 mL more water to it? (Remember to use the total new volume)
.188 M
3.78 M
.389 M
1.76 M
If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration of this solution be?
2 M
0.02 M
0.033 M
0.08 M
Which of the following is the Dilution Formula?
V1M1 = V2M2
M = m/V
V = mT
PV = nRT
A dilution is when
solute is added to the volume of solution
water is added to the volume of solution
solute is removed from the volume of solution
water is removed from the volume of solution
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250.0 mL?
15.9 M
0.636 M
0.642 M
1.59 M
If I have 340.0 mL of a 0.500 M NaBr solution, what will the concentration be if I add 560.0 mL more water to it? (Remember to use the total new volume)
.188 M
3.78 M
.389 M
1.76 M
If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration of this solution be?
2 M
0.02 M
0.033 M
0.08 M
125.0 mL of 2.00 M calcium hydroxide solution is diluted to a concentration of 1.50 M. How many mL of water was added to the original volume?
167 mL
42.0 mL
93.8 mL
0.0240 mL
When you make a dilution, which of these values remains constant?
The molarity (M)
The total moles of solute
The volume (V)
The concentration
How do we make a dilution?
Add more solute
Remove solute
Remove solvent
Add more solvent
When you make a dilution, which of these values remains constant?
The molarity (M)
The total moles of solute
The volume (V)
The concentration
How do we make a dilution?
Add more solute
Remove solute
Remove solvent
Add more solvent
As we dilute a solution.....
The volume increases and the molarity (M) increases
The volume increases and the molarity (M) decreases
The volume decreases and the molarity (M) increases
The volume decreases and the molarity (M) decreases
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
7.5 mL
15 mL
1333 mL
200 mL
How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution?
175 mL
250 mL
50 mL
5 mL
What would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?
390M
230M
0.43M
0.26M
The definition of a stock solution is ...
a highly concentrated solution that is meant to be diluted to some lower concentration.
moles of solute divided by liters of solvent
a solution used to make soup and is usually either chicken or beef flavor
a solution with less dissolved solute than a dilute solution.
Which of the following is the Dilution Formula?
V1M1 = V2M2
M = m/V
V = mT
PV = nRT
A dilution is when
solute is added to the volume of solution
water is added to the volume of solution
solute is removed from the volume of solution
water is removed from the volume of solution
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250.0 mL?
15.9 M
0.636 M
0.642 M
1.59 M
If I have 340.0 mL of a 0.500 M NaBr solution, what will the concentration be if I add 560.0 mL more water to it? (Remember to use the total new volume)
.188 M
3.78 M
.389 M
1.76 M
If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration of this solution be?
2 M
0.02 M
0.033 M
0.08 M
125.0 mL of 2.00 M calcium hydroxide solution is diluted to a concentration of 1.50 M. How many mL of water was added to the original volume?
167 mL
42.0 mL
93.8 mL
0.0240 mL
The term molar, which describes a solution's concentration, is written as?
M
mol
g
g/L
The term molar, which describes a solution's concentration, is written as?
M
mol
g
g/L
You need to make 200 mL of a 0.20 M aqueous solution of sodium chloride. The only available solution is 1.0 M. Determine how to make the needed dilution.
Add 160 mL to the initial volume
Add 160 grams to the initial volume
Evaporate 160 mL from the initial volume
the experiment cannot be conducted with the materials provided
A dilution is when
solute is added to the volume of stock solution
water is added to the volume of stock solution
solute is removed from the volume of stock solution
water is removed from the volume of stock solution
Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 ml of H2O.
0.08 M
12.5 M
1.37 M
0.74 M
Calculate the grams of NaOH present in 10.0 mL of a 2.0 M NaOH solution.
0.8 grams
2000 grams
0.3 grams
5 grams
Molarity is ...
grams of solute/deciliters of solvent.
grams of solute/liters of solution.
moles of solute/liters of solution.
moles of solute/milliliters of solvent.
A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 400.0 mL. What is the molarity of the solution?
0.10 M
0.40 M
1.25 M
2.33 M
The definition of a stock solution is ...
a highly concentrated solution that is meant to be diluted to some lower concentration.
moles of solute divided by liters of solvent
a solution used to make soup and is usually either chicken or beef flavor
a solution with less dissolved solute than a dilute solution.
A 0.500 M solution of NaOH, which contains 0.750 mole of solute, would have a volume, in milliliters
0.667 mL
1200 mL
1500 mL
2100 mL
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
If 0.775 L of 1.00 M NaOH is diluted to 1.00 L, the resulting solution contains
0.225 mol NaOH
0.775 mol NaOH
1.25 mol NaOH
2.45 mol NaOH
Calculate the volume of a 5M solution that contains 10 moles of NaOH
0.5 L
1 L
2 L
4 L
What is a concentrated solution?
a solution that has a large amount of solute in a large volume of solvent
a solution that has an equal amount of solute in the same volume of solvent
a solution that has a small amount of solute in a large volume of solvent
a solution that has a large amount of solute in a small volume of solvent
Which of the following solutions has a molarity of 2.0?
0.050 mole of solute in 0.0250 L of solution
2.0 moles of solute in 0.5000 L of solution
3.0 moles of solute in 1.5000 L of solution
none of the above
Calculate the moles in 1500 mL of a 2 M solution of BaI2
1.33 moles
2.25 moles
3.00 moles
3000 moles
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
0.8 M
1.5M
3.0M
6.0M
A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility
lowering the temperature of the solvent
stirring the solute in the solution
increasing the pressure on the solution
increasing the particle size of the solute
Which of the following types of solutions has more room to dissolve solute?
supersaturated
saturated
unsaturated
What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?
1.6 M
0.63 M
10 M
2.6 M
What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?
1.6 M
0.63 M
10 M
2.6 M
What volume is needed to make a 2.45 M solution of KCl using 0.50 mol of KCl?
4.9 L
0.20 L
1.2 L
How many moles of NaCl are needed to make 5.25 L of a 0.25 M solution?
1.3 mol
21 mol
0.048 mol
How many grams of KCl would be dissolved in 5.50 L of a 0.250 M solution of KCl? *molar mass of KCl = 74.55 g/mol*
1.48 g
103 g
1640 g
3.39 g
What is the molarity of a solution made by adding 1.565 moles of PbNO3 to 0.5 L?
300. M
31.3 M
3.13 M
1.56 M
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
Which solution is more diluted?
Solution 1:
1000 mL of water
60g of salt
Solution 2:
500 mL of water
60 g of salt
Not enough information to tell
Solution 1
Solution 2
They are equally diluted
Molarity is measured in _____.
moles per g.
mols per L.
moles per mm.
moles per mL.
To prepare 1M of NaOH in 1L of solution, you will need a mass of ______g NaOH
23g
40g
4g
39g
0.25 L contains 0.4 mol NaOH. Find its molarity.
0.1M
1.6M
0.4M
0.625M
The ________ is the substance that becomes dissolved in a solution (the lesser quantity)
Solvent
Solute
Dipole
A __________ solution is one that no more solute can be dissolved in the solvent
Unsaturated
Saturated
Supersaturated
A __________ solution is one that no more solute can be dissolved in the solvent
Unsaturated
Saturated
Supersaturated
Two liquids that are completely soluble in one another are said to be ___________.
Miscible
Immiscible
Saturated
Generally, the solubility of a solid _________ as temperature increases
Decreases
Increases
Remains constant
The parts of a solution are the
Salt and vapor
Solvent and solid
Solute and water
Solute and solvent
In a solution, the solute is the substance that
Dissolves in the solvent
Is in the greatest quantity
Is the liquid
Is a solid
Which of the following is a factor that affects the rate of dissolving?
rate of solubility
pressure
conductivity
surface area
The maximum amount of a substance that is dissolved in a given solution at a constant temperature
Concentration
Solubility
Polarity
Saturation point
A solution of KCl and water that has more KCl than it can handle at a given temperature is determined to be _________.
Saturated
Unsaturated
Supersaturated
Heating a solvent _______ the energy of its particles, making them move faster on average, and ________ the rate at which a solid solute can dissolve in the solvent.
increases, increases
increases, decreases
decreases, decreases
decreases, increases
Temperature _____________ the solubility of a solid; Temperature _____________ the solubility of a gas.
increase, increase
increase, decrease
decrease, decrease
decrease, increase
Which substance is considered a homogeneous mixture?
KBr(s)
NaCl(s)
LiNO3(aq)
H2O(l)
How many grams of NH4Cl(s) must dissolve in 100 g of water at 90 °C to form a saturated solution?
81 g
77 g
68 g
72 g
Which term correctly describes an aqueous solution of potassium chloride, KCl?
water is the solute, KCl is the solvent
KCl is the solute, water is the solvent
NaBr is the solute, water is the solvent
water is the solute, NaBr is the solvent
Determine the mass of KNO3 in grams needed to form a saturated solution in 400 g of water at 50 °C.
336 g
84 g
350 g
88 g
An saturated solution containing NaNO3 dissolved in 100 g of water at 40 °C is cooled to 10 °C. How many grams of NaNO3 will precipitate out of the solution?
35 g
80 g
26 g
40 g
An unsaturated solution is created by dissolving 20 g of KClO3 into 100 g of water at 70 °C. How many more grams of KClO3 must be dissolved in order to saturate this solution?
16 g
24 g
20 g
10 g
According to Table G which solution is a gas?
KCl
KI
HCl
NaCl
What mass of SO2 must dissolve in 50 g of water at 10 °C in order to form a saturated solution?
16 g
8 g
32 g
20 g
Which solute is insoluble in water?
NaBr
NH4Cl
MgCO3
Li3PO4
Which solute would form the most concentrated solution when dissolved in water?
AgBr
Al2(CrO4)3
Na2S
Be(OH)2
Which choice is an example of a supersaturated solution in 100 g of water?
90 g of NH4Cl at 90 °C
5 g of SO2 at 40 °C
100 g of KI at 10 °C
13 g of NH3 at 80 °C
What is the maximum mass of KI that can dissolve in 100 g of water at 20 °C to form a saturated solution?
105 g
145 g
90 g
110 g
Which solution is most soluble in 100 g of water at 50 °C?
KNO3
KCl
SO2
NaCl
Which statement correctly describes an aqueous solution of sodium chloride, NaCl?
homogeneous and can be separated by filtration
heterogeneous and can be separated by filtration
homogeneous and cannot be separated by filtration
heterogeneous and cannot be separated by filtration
Which solute would dissolve in water to form the least concentrated solution?
NaCl
KBr
LiI
PbBr2
How many grams of NaCl must dissolve in 100 g of water at 60 °C to form a saturated solution?
44 g
20 g
38 g
35 g
What must be the temperature of 100 g of water in order for 70 g of NH4Cl to dissolve to form a saturated solution?
86 °C
81 °C
90 °C
95 °C
Which term correctly describes a solution formed by dissolving 30 g of KCl in 100 g of water at 80 °C?
unsaturated
saturated
supersaturated?
Which solute is most soluble in water?
CaS
Mg(OH)2
PbI2
KNO3
Which solute would form the least concentrated aqueous solution?
NaCl
NH4C2H3O2
Ba3(PO4)2
Li2O
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
83 grams
75 grams
40 grams
12 grams
Which substance is MOST soluble at 0 ºC?
KI
NaNO3
NaCl
Ce2(SO4)3
When 42 grams of potassium chloride ( KCl), is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
supersaturated
saturated
unsaturated
How many grams of CaCl2, are soluble in 100 g of water at approximately 17 ºC?
58 grams
70 grams
0 grams
12 grams
In a solution, the part of the mixture in which other substance are dissolved
Strainer
Solvent
Solute
Magnetism
The substance which dissolved in the solvent
Dissolve
Solubility
Solvent
Solute
People often put sugar in their tea to make it sweet. Under what condition will the sugar dissolve the fastest?
When the tea is cold.
When the tea is hot.
When the tea is dark.
When the tea is in a tall glass.
Identify the solvent
Which solute is the most soluble at 10 ⁰C?
KI
NH3
KClO3
NH4Cl
How many grams of SO2 can dissolve at 50 ⁰C?
5 g
10 g
20 g
39 g
What is the maximum temperature where at least 60 g of HCl can dissolve?
35 ⁰C
45 ⁰C
55 ⁰C
65 ⁰C
Which salt is LEAST soluble at 0 ºC?
KNO3
Ce2(SO4)3
K2Cr2O7
KClO3
What solution has the highest solubility at 20 C?
CaCl3
NaNo3
KCl
KNO3
When 20 grams of KNO₃ is disolved in water that's 80 C, it can be described as
Unsaturated
Saturated
Supersaturated
How many grams of K2Cr2O7, are able to disolve at 95 ºC?
63
75
12
83
At what temperature does the solubility of NaCl, match the solubility of K2Cr2O7?
60
30
83
50
How do you know when you have a saturated solution?
You don't see anymore material in the solution. It has dissolved.
The material dissolves and no more will dissolve because you see it collect at the bottom.
The solution is bubbling and cloudy.
The solution is clear and there is nothing at the bottom.
You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:
saturated
unsaturated
concentrated
warm
Using the supplied solubility curve diagram, determine the temperature at which KNO3 and NH4Cl have the same solubility.
16°C
39°C
25°C
73°C
Using the supplied solubility curve diagram, determine what type of solution would be present if 50 grams of NH3 was dissolved in 100 grams of water at 30°C.
saturated
unsaturated
supersaturated
When 20 grams of KNO₃ is disolved in water that's 80 C, it can be described as
Unsaturated
Saturated
Supersaturated
What solution has the highest solubility at 20 C?
CaCl3
NaNo3
KCl
KNO3
At what temperature does the solubility of NaCl, match the solubility of K2Cr2O7?
60
30
83
50
How many grams of K2Cr2O7, are able to disolve at 95 ºC?
63
75
12
83
Which is the most soluble at 0 C?
Water
NaCl
NaNo3
Kl
Which solute does not increase in solubility as the temurature increases?
NaCl
SO2
KClO3
KNO3
When 20 grams of KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be described as
Saturated
Unsaturated
Supersaturated
None
When 50 grams of KCl is dissolved at 50 ºC, the solution can be described as
Supersaturated
Unsaturated
Saturated.
None
When 40 grams of KCl is dissolved at 50 ºC, the solution can be described as
Saturated
Supersaturated
Unsaturated
None
When 20 grams of KNO3 is dissolved at 80 ºC, the solution can be described as
Saturated
Unsaturated
Supersaturated
None
When 20 grams of KNO₃ is disolved in water that's 80 C, it can be described as
Unsaturated
Saturated
Supersaturated
What solution has the highest solubility at 20 C?
CaCl3
NaNo3
KCl
KNO3
At what temperature does the solubility of NaCl, match the solubility of K2Cr2O7?
60
30
83
50
How many grams of K2Cr2O7, are able to disolve at 95 ºC?
63
75
12
83
Which is the most soluble at 0 C?
Water
NaCl
NaNo3
Kl
Which solute does not increase in solubility as the temurature increases?
NaCl
SO2
KClO3
KNO3
When 20 grams of KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be described as
Saturated
Unsaturated
Supersaturated
None
When 50 grams of KCl is dissolved at 50 ºC, the solution can be described as
Supersaturated
Unsaturated
Saturated.
None
When 40 grams of KCl is dissolved at 50 ºC, the solution can be described as
Saturated
Supersaturated
Unsaturated
None
When 20 grams of KNO3 is dissolved at 80 ºC, the solution can be described as
Saturated
Unsaturated
Supersaturated
None
At what temperature does the solubility of NaCl, match the solubility of K2Cr2O7?
60
30
83
50
Which solute does not increase in solubility as the temurature increases?
NaCl
SO2
KClO3
KNO3
When 40 grams of KCl is dissolved at 50 ºC, the solution can be described as
Saturated
Supersaturated
Unsaturated
None
When 20 grams of KNO3 is dissolved at 80 ºC, the solution can be described as
Saturated
Unsaturated
Supersaturated
None
How many grams of SO2 can dissolve at 50 ⁰C?
5 g
10 g
20 g
39 g
What is the maximum temperature where at least 60 g of HCl can dissolve?
35 ⁰C
45 ⁰C
55 ⁰C
65 ⁰C
Which salt is LEAST soluble at 0 ºC?
KNO3
Ce2(SO4)3
K2Cr2O7
KClO3
How much KNO3 solute is saturated at 40 degrees?
75
55
65
85
How much C12H22O11 solute is saturated at 40 degrees?
240
220
230
250
Which solute is MOST likely a gas?
KNO3
NaNO3
KCl
Ce2(SO4)3
At what temperature can you fully dissolve 140g of NaNO3?
62
73
81
You cannot determine this
What type of a solution is 260g sugar at 50ºC in 100g H2O?
Saturated
Unsaturated
Supersaturated
What type of a solution is 25g NaCl at 70ºC in 100g H2O?
Saturated
Unsaturated
Supersaturated
At what temperature can you fully dissolve 120g of NaBr?
70
20
100
You cannot determine this
