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Quiz- Molarity

Total questions: 10

Worksheet time: 14mins

Name
Class
Date
1.
A strong electrolyte is one that __________ completely in solution.
a)
reacts
b)
associates
c)
disassociates
d)
stays a solid
2.

What is the molarity of a 0.1 L solution in which 4.67 grams of HCl is dissolved?

a)
5 M
b)
4 M
c)

2.2 M

d)

1.3 M

3.

How many grams of hydrochloric acid, HCl, are there in 350.0 mL of a 4.000 M solution?

a)
20.3 grams
b)
36.6 grams
c)

51.0 grams

d)
300 grams
4.

What is the concentration (M) of a NaCl solution prepared by dissolving 4.7 g of NaCl in 350 mL of water?

a)
18 M
b)
0.16 M
c)
0.45 M
d)

.23 M

5.

How many grams of CH3OH must be added to water to prepare 150 mL of a solution that is 1.5 M CH3OH?

a)

7.2 grams

b)
2.4 grams
c)
9.6 grams
d)
4.3 grams
6.

How many grams of H3PO4 are in 175 mL of a 4.5 M solution of H3PO4 ?

a)
0.61 grams
b)
60 grams
c)
20 grams
d)

77 grams

7.

The molarity (M) of an aqueous solution containing 32.5 g of sucrose C12H22O11 in 55.5 mL of solution is __________.

a)

1.71

b)
1.85
c)
3.52
d)
0.104
8.

How many grams of sodium chloride (NaCl) are there in 45.0 mL of a 2.75 M aqueous solution of sodium chloride?

a)
0.105 grams
b)

7.23 grams

c)
3.21 grams
d)
12.2 grams
9.

An aqueous ethanol solution of 500 mL (V1) was diluted to 5.00 L (V2), giving a concentration of 0.0500 M (M2). The concentration of the original solution was __________ M?

a)

0.500 M

b)

0.250 M

c)

5.00 M

d)
1.60 M
10.

The molarity of a solution prepared by diluting 41.62 mL (V1) of 4.005 M (M1) aqueous K2Cr2O7 to 400.0 mL (V2) is __________M?

a)
57.2 M
b)
0.0044 M
c)

0.417 M

d)
0.870 M