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Molarity Practice

Total questions: 7

Worksheet time: 9mins

Name
Class
Date
1.

Molarity is defined as ______ per _____.

a)

grams solvent, mols solute

b)

liters solution, mols solute

c)

mols of solvent, liters solute

d)

mols solute, liters solvent

2.
Which sweet tea would you expect to taste the sweetest?
a)
1M
b)
3M
c)
3.1M
d)
2.5M
3.

Which of the following is the correct formula for calculating molarity?

a)

moles/liters of solution

b)

moles/kg of solvent

c)

# particles/Avogadro's #

d)

theoretical yield/actual yield

4.

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution (don't forget to convert to L!)

a)
0.750 M
b)
99 M
c)
1.3 M
d)
2.0 M
5.

What is the molarity of a solution made by adding 1.565 moles of PbNO3 to 500 mL?

a)

300. M

b)

31.3 M

c)

3 M

d)

1.56 M

6.

What is the molarity of 4 g of NaCl in 3,800 mL of solution? Use sig figs!

a)

0.02 M

b)

0.0011 M

c)

1.052 M

d)

0.062 M

7.

Find the molarity of 186.55 g of sucrose, C12H22O11 (MM=342.2965 g/mol) in 250 mL of water.

a)

2.2 M

b)

0.746 M

c)

1.18 M

d)

0.545 M