Free Printable Concentration

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Concentration

Total questions: 20

Worksheet time: 53mins

Name

Class

Date

The ___ is the thing being dissolved

solute

solvent

What is the molarity of 4 grams of sodium chloride (NaCl) in 3,800 mL of solution?

0.018 M

0.018 m

1.052 M

1.052 m

How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?

1.074 mol

62.7 mol

1.07 mol

62.7 grams

What is the molarity of a solution which contains 22.41 grams of NaCl in 50.0 mL of solution?

0.488 M

7.66 M

7.67 M

0.00767 M

How many grams of solute are dissolved in 125.0 mL of 5.00M NaCl?

0.625 g NaCl

36.52 g NaCl

36.5 g NaCl

0.625 mol NaCl

Find the concentration of 186.55 g of sugar (C₁₂H₂₂O₁₁) in 250. mL of water.

2.18 molL^-1

2.17 molL^-1

1.18 molL^-1

.00218 molL^-1

Solvent is best defined as-

a mixture in which the substances are spread out evenly between one another and cannot be told apart

the ability of a substance to dissolve in another substance

a substance that dissolves in another substance

a substance into which another substance dissolves

How many moles of solute are contained in 3.0 L of a 1.5 M solution?

4.5 moles

1.5 moles

2.0 moles

0.5 moles

What is the percent composition of a sugar solution where 10 grams of sugar is added to 100 grams of water?

.10%

0.091%

9.090909%

9.1%

10.

What mass of solute is needed to make 75.0 g of a 3.4% solution?

2.55 g

22 g

0.05 g

11.

Concentration is

the amount of solute in the solvent

the amount of solvent in the solute

density

particle size

12.

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

13.

In order to dilute a solution, you need to

add more of the solid

add more water

find the mass

find the volume

14.

Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water

15.

What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?

0.018 M

0.0011 M

1.052 M

0.062 M

16.

Molality (m) = moles of solute / _________________________.

kilogram of solvent

kiloliter of solvent

kilometer of solvent

ounces of solvent

17.

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250. mL?

15.9 M

0.636 M

0.642 M

1.59 M

18.

How many milliliters of concentrated 18M H₂SO₄ is needed to prepare 250 mL of a 6.0 M solution?

83.3 mL

0.083 L

1500 mL

1.5 L

19.

How many grams of AgNO₃ (MM = 169.87) are needed to prepare 0.125M solution in 250 mL of water?

.03g

0.5g

5.3g

84.9g

20.

How many grams of Calcium fluoride are needed to prepare 980 mL a 2.0 molar aqueous solution?

150 grams

2.0 grams

1.5 x 10⁵ grams

160 grams

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Concentration

Total questions: 20

Worksheet time: 53mins

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