Free Printable molarity

Worksheets

molarity

Total questions: 26

Worksheet time: 26mins

Name

Class

Date

True or False? The higher the concentration of a solution the less solutes it has in it.

True

False

What volume of 1.50 M KBr can be made from 15.6 mL of concentrated KBr with a molarity of 9.65 M?

150. mL

151 mL

1.00 L

1.00 mL

What is the molarity of 3 mole of hydrochloric acid in 3 L of water.

The ___ is the thing being dissolved

solute

solvent

True or false? Insoluble means that two substances can dissolve in one another.

true

false

What is the formula for molarity?

moles/grams

moles/kilograms

moles/milliliters

moles/liters

Molarity is measured in

moles per kg

mols per L

moles per kJ

moles per mL

Which of the following types of solutions has more room to dissolve solute?

supersaturated

saturated

unsaturated

When calculating molality, Kg of the following are included in the calculation?

solvent

solute

none of these

solvent & solute

10.

Molar mass of NaOH is ______________________

40 grams/mol

50 grams/mol

45 grams/mol

38 grams/nol

11.

Molality (m) = moles of solute / _________________________.

kilogram of solvent

kiloliter of solvent

kilometer of solvent

ounces of solvent

12.

What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?

5 mol/kg. solvent

4 mol/kg solvent

3 mol/kg. solvent

2.5 moles /kg solvent

13.

molality is defined as ________________________

the moles of solute per kilogram of solvent

moles of solute per liter of solution

mass of solute/ mass of solution

mass of solute/ mass of solvent X 100

14.

True or False? The higher the concentration of a solution the less solutes it has in it.

True

False

15.

Molarity is measured in _____.

moles per g.

mols per L.

moles per mm.

moles per mL.

16.

What is the mass of 0.75 moles of (NH₄)₃PO₄?

101.75 g

121.75 g

111.75 g

131.75 g

17.

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

1074 mol

0.069 mol

1.07 mol

62.7 mol

18.

What do molarity and molality have in common?

Both have "moles solute" in the numerator

Both have "kg solvent" in the denominator

Both have "L solution" in the denominator

Both have "moles solution" in the denominator

19.

Which equation is used to find molarity?

Moles solute/L solution

Moles solute/kg solution

Moles solute/kg solvent

Grams solute/L solution

20.

Which equation is used to find molality?

Moles solute/L solution

Moles solute/kg solution

Moles solute/kg solvent

Grams solute/L solution

21.

What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?

2.0 M

0.22 m

135 m

2.0m

22.

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

0.018 M

0.018 mol

1.052 M

1.052 mol

23.

Total number of mol fraction for all component in the solution is equal to

1.0

0.95

0.50

2.0

24.

80g of NaOH are dissolved in water to from 2.5L of solution . what is the molarity of the solution?

2.0 M

0.5 M

1.2 M

0.8 M

25.

10g of NaOH are dissolved in water to from 0.5M of solution . what is the volume of the final solution?

20 L

0.5 L

26.