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WorksheetsConcentration and Solutions Quiz
Total questions: 50
Worksheet time: 35mins
What is concentration?
The amount of solvent in a solution
The ratio of solute to solvent in a solution
The total volume of a solution
The amount of solute in a solution
How do we describe the relative concentration of solutions?
By comparing the amount of solvent
By comparing the amount of solute
By comparing the ratio of solute to solvent
By comparing the temperature of solutions
What is the formula for calculating concentration?
Total amount of solute × volume of solvent
Total amount of solute ÷ volume of solvent
Volume of solvent ÷ total amount of solute
Volume of solvent × total amount of solute
A student adds 50 grams of salt to 100 milliliters of water. What is the concentration of the solution?
0.25 grams/mL
0.50 grams/mL
1.00 grams/mL
2.00 grams/mL
What does it mean if a solution is concentrated?
It has more solvent than solute
It has more solute than solvent
It has equal amounts of solute and solvent
It has no solute
What does it mean if a solution is dilute?
It has more solute than solvent
It has more solvent than solute
It has no solvent
It has no solute
How can you make a solution less concentrated?
By adding more solute
By adding more solvent
By heating the solution
By cooling the solution
What is the concentration of a solution with 75 grams of salt in 150 grams of water?
0.25 grams/mL
0.50 grams/mL
0.75 grams/mL
1.00 grams/mL
What happens to the concentration if you add more solute to a solution?
It decreases
It increases
It stays the same
It becomes zero
If a solution is described as dilute, what can you infer about its concentration?
It has a high concentration
It has a low concentration
It has no concentration
It has a medium concentration
What is the concentration of a solution with 25 grams of solute in 50 mL of solvent?
Remember - concentration = total amount of solute ÷ volume of solvent
0.25 grams/mL
0.50 grams/mL
0.75 grams/mL
1.00 grams/mL
If you have two solutions, one with a concentration of 0.50 grams/mL and another with 0.25 grams/mL, which is more concentrated?
Remember - concentration = total amount of solute ÷ volume of solvent
The solution with 0.50 grams/mL
The solution with 0.25 grams/mL
Both are equally concentrated
Neither is concentrated
What is the effect of adding more solvent to a concentrated solution?
It becomes more concentrated
It becomes less concentrated
It stays the same
It becomes zero
If a solution has a concentration of 1.00 grams/mL, what does this mean?
It has 1 gram of solute per 1 mL of solvent
It has 1 mL of solute per 1 gram of solvent
It has 1 gram of solvent per 1 mL of solute
It has 1 mL of solvent per 1 gram of solute
What is the concentration of a solution with 10 grams of solute in 20 mL of solvent?
Remember - concentration = total amount of solute ÷ volume of solvent
0.25 grams/mL
0.50 grams/mL
0.75 grams/mL
1.00 grams/mL
What is concentration?
The amount of solute in a given volume of solution
The color of a solution
The temperature of a solution
The weight of a container
How do we describe the relative concentration of solutions?
By comparing the color of solutions
By comparing the amount of solute in solutions
By comparing the temperature of solutions
By comparing the weight of solutions
How can you change the relative concentration of a solution?
By adding more solute or solvent
By changing the color of the solution
By heating the solution
By shaking the solution
How do we determine the specific concentration of solutions?
By measuring the weight of the container
By calculating the ratio of solute to solvent
By observing the color of the solution
By checking the temperature of the solution
Which solution is more concentrated?
50 grams of sugar in 100ml water
75 grams of sugar in 100ml water
25 grams of sugar in 100ml water
60 grams of sugar in 100ml water
Which solution is more concentrated?
Remember - concentration = total amount of solute ÷ volume of solvent
20g salt in 50 milliliters of water
40g salt in 50 milliliters of water
30g salt in 50 milliliters of water
10g salt in 50 milliliters of water
What would you do to make a solution more concentrated?
Add more solvent
Add more solute
Add more solvent and solute
Pour some of the solution out
Which action would NOT change the concentration of a solution at all?
Adding more solvent
Pouring out some of the solution
Evaporating some of the solute
Removing some solvent
Which statement is true about a solution of saltwater?
The water is the solvent
The salt and water are solutes
The salt is the solvent
The water is the solute
If you make a solution of Kool-Aid and it is too concentrated, what would be true about its taste?
It would be too watery
It would taste just right
It would be too sugary
It would be too salty
To make a Kool-Aid solution less concentrated, which would you do?
Add more solute
Add more solvent
Pour out some of the Kool-Aid
Add more solvent AND solute
What could you do to increase the concentration of a solution?
Pour out some of the solution
Add more solvent
Pour it into a larger container
Add more solute
Which is true about the rate of a solute dissolving?
Solutes dissolve slower in a hot solvent
Solutes dissolve faster when not stirred
Smaller particles dissolve faster
Larger particles in cold solvent dissolve faster
Which solution is more concentrated?
Remember - concentration = total amount of solute ÷ volume of solvent
50 grams of sugar in 100ml water
75 grams of sugar in 100ml water
25 grams of sugar in 100ml water
60 grams of sugar in 100ml water
Which solution is more concentrated?
Remember - concentration = total amount of solute ÷ volume of solvent
20g salt in 50 milliliters of water
40g salt in 50 milliliters of water
30g salt in 50 milliliters of water
10g salt in 50 milliliters of water
What would you do to make a solution more concentrated?
Add more solvent
Add more solute
Add more solvent and solute
Pour some of the solution out
Which action would NOT change the concentration of a solution at all?
Adding more solvent
Pouring out some of the solution
Evaporating some of the solute
Removing some solvent
Which statement is true about a solution of saltwater?
The water is the solvent
The salt and water are solutes
The salt is the solvent
The water is the solute
If you make a solution of Kool-Aid and it is too concentrated, what would be true about its taste?
It would be too watery
It would taste just right
It would be too sugary
It would be too salty
To make a Kool-Aid solution less concentrated, which would you do?
Add more solute
Add more solvent
Pour out some of the Kool-Aid
Add more solvent AND solute
What could you do to increase the concentration of a solution?
Pour out some of the solution
Add more solvent
Pour it into a larger container
Add more solute
Which statement is true?
To make a solution more concentrated, more solvent is added
To make a solution less concentrated, more solvent is added
To make a solution more concentrated, less solvent AND solute are added
Which is true about the rate of a solute dissolving?
Solutes dissolve slower in a hot solvent
Solutes dissolve faster when not stirred
Smaller particles dissolve faster
Larger particles in cold solvent dissolve faster
Which is NOT a factor in the rate at which a solute dissolves?
The temperature of the solvent
The size of the particles of the solute
The size of the container the solution is in
Whether or not the mixture is stirred
If a person tries to dissolve more sugar into his glass of iced tea, why might the sugar NOT dissolve quickly?
Sugar doesn't dissolve in water
There was too much water
The water was too cold
There wasn't enough sugar
What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?
Remember - concentration = total amount of solute ÷ volume of solvent
What is the mass percent of 125 grams of fructose dissolved in 375 ml of water?
25.0%
5.5%
250%
How do we compute for percentage by volume?
volume of solute divided by volume of solution then multiply by one hundred percent
volume of solution divided by volume of solute then multiply by one hundred percent
add volume of solute and solvent then multiply by one hundred percent
What is the perecent by mass of a solution that contains 12.0 g of solute per 200.0 g solution?
Remember - concentration = total amount of solute ÷ volume of solvent
5.6 %
6 %
2.4 %
Which solution is more diluted (Less concentrated)?
Solution 1:
1000 mL of water
60g of salt
Solution 2:
500 mL of water
60 g of salt
Solution 1
Solution 2
They are equally diluted
What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?
Remember - concentration = total amount of solute ÷ volume of solvent
0.014 %
0.13%
1.4 %
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
(a)
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
If Mr. Kennedy's Coffee was too sweet. How would I dilute it?
Add more Sugar
Add more coffee
What is the meaning of the word
Conversely?
(Choose all that Apply)
Opposite of
On the other hand
After
Just like
