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Mole Conversion Quiz (Mass/Molecules)

Total questions: 40

Worksheet time: 2hrs 9mins

Name
Class
Date
1.
How many molecules are in 2.5 mol of NaCl?
a)
1.51x1023
b)
146
c)
4.15
d)
1.51x1024
2.
How many molecules of sugar (C6H12O6) are in a mole?
a)
24 molecules
b)
180 molecules
c)
180 g
d)
6.02 x 1023 molecules
3.
How many moles are in 3.01 x 1022 atoms of magnesium?
a)
0.05 moles
b)
1.81 x 1046 moles
c)
5.00 x 1021 moles
d)
5 moles
4.

What is the mass of one mole of silver?

a)

32.06 g

b)

107.87 g

c)

14.01 g

d)

22.99 g

5.

What is the mass of 4.98 x 1024 atoms of Zn?

a)

541 g

b)

8.27 g

c)

.122 g

d)

4.59 x 1046 g

6.
How many molecules are in 9.44 moles of AlCl3?
a)
5.68 molec AlCl3
b)
5.68x1024 molec AlCl3
c)
0.705 molec AlCl3
d)
1.25x1023 molec AlCl3
7.

Calculate the molar mass of (NH3)2O.

(don't forget your units)

4 lines
8.

Convert 35.5 grams cobalt (III) chloride (CoCl3) to moles

Don't forget your units

4 lines
9.

What is the mass of one mole of silver?

a)

32.06 g

b)

107.87 g

c)

14.01 g

d)

22.99 g

10.

48.86 g of cobalt is equal to how many moles of cobalt?

a)

2879 moles

b)

8.291 moles

c)

.8291 moles

d)

.83 moles

11.

How many moles of sodium chloride (NaCl) are in a 321.8 g sample?

a)

18810 moles

b)

3.315 x 1024 moles

c)

5.507 moles

d)

4.767 moles

12.

Convert 86.235 g of diphosphorus pentaoxide (P2O5) to moles.

a)

12240 moles

b)

1.8747 moles

c)

.608 moles

d)

.60755 moles

13.
What is the molar mass of NaOH?
a)
40 g/mol
b)
38.989 g/mol
c)
23.998 g/mol
d)
57.004 g/mol
14.
What is the molar mass of AuCl3?
a)
96 g
b)
130 g
c)
232.5 g
d)
303.3 g
15.
How many molecules are in 2.5 mol of NaCl?
a)
1.51x1023
b)
146
c)
4.15
d)
1.51x1024
16.

The mass of one mole of an element is equal to

a)

its atomic number from the periodic table, but in amus.

b)

its atomic mass from the periodic table, but in amus.

c)

its atomic mass from the periodic table, but in grams.

d)

its atomic number from the periodic table, but in grams.

17.

What is the molar mass of PbSO4?

a)

303.27 g/mol

b)

255.27 g/mol

c)

163.87 g/mol

d)

372.27 g/mol

18.

How many formula units are in 2.5 moles of NaCl?

a)

1.5 x1024 formula units

b)

1.5 formula units

c)

4.2 formula units

d)

4.2 x10-24 molecules

19.

Shivani measures out 6.0 moles of epsom salt (MgSO4) to put in her bath. How many grams of MgSO4 went in the bath?

a)

3.6 x 1024 g

b)

720 g

c)

0.050 g

d)

340 g

20.
How many molecules are there in 31.8 moles of water?
a)
5.28 x 10-23 molecules
b)
1.91 x 1025 molecules
c)
5.28x 10-25
d)
1.91 x 1022
21.

Determine the mass of 4.20 moles of C6H12

a)

353 g

b)

0.0499 g

c)

337 g

d)

2.53 x 1024 g

22.

How many grams are in 1.2 moles of neon?

a)

0.059 grams

b)

7.2 x 1023 grams

c)

2.0 x 10-24 grams

d)

24 grams

23.
How many moles are in 3.01 x 1022 atoms of magnesium?
a)
0.05 moles
b)
1.81 x 1046 moles
c)
5.00 x 1021 moles
d)
5 moles
24.
What is the mass of 0.89 mol of CaCl2?
a)
111 grams
b)
0.008 grams
c)
98.9 grams
d)
none of the choices
25.

48.86 g of cobalt is equal to how many moles of cobalt?

a)

2879 moles

b)

8.291 moles

c)

.8291 moles

d)

.829 moles

26.
Which conversion factor should be used to solve the following, "How many moles are in 28 grams of CO2?"
a)
1 mol = 22.4 L 
b)
1 mol = 44.01 g
c)
1 mol = 6.02x1023 atoms
d)
more than one
27.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
28.
How are the mole and atomic masses of elements related?  
a)
The atomic mass of any substance is always equal to 1 mole of that substance 
b)
The atomic mass added up with itself by 6.02 x 1023 equals the amount of atoms
c)
The atomic mass is the amount of protons plus number of atoms
d)
Atoms combined make up molecules, which are the measurement of atomic masses 
29.

How do you solve the following problem: How many grams are there in 7.5 moles of H2SO4?

a)

Convert liters to moles then moles to grams

b)

Convert particles to moles then moles to grams

c)

Convert moles to grams

d)

Convert grams to moles

30.
Question Image

Match the following...

a)

You convert moles to grams by...

1.

multiplying by the molar mass

b)

You convert liters to moles by...

2.

dividing by 22.4L

c)

You convert moles to particles by...

3.

multiplying my avagadro's constant

d)

You convert grams to moles by...

4.

dividing by the molar mass

e)

You convert moles to liters by...

5.

multiplying by 22.4L

31.

How many moles are in 8.30 X 1023 molecules of H2O?

a)

1.38 X 1023 moles H2O

b)

1.38 moles H2O

c)

2 moles H2O

d)

1 mole H2O

32.
Molar mass is in units of ________.
a)

grams

b)

grams/mole

c)

mole

d)

moles/gram

33.

What is the mass of 2.50 mole of oxygen gas O2?

a)

40 g

b)

80 g

c)

16 g

d)

32 g

34.

How many moles are in 2.2x1024 atoms of argon?

a)

6.02x1023 moles

b)

1.3x1048 moles

c)

0.27 moles

d)

3.7 moles

e)

6.02x1023 formula units

f)

6.02x1023 compounds

g)

2.2x1024 atoms

h)

1 mole

i)

6.02x1023 atoms

j)

6.02x1023 molecules

1
2
3
4
1)
2)
3)
4)
35.

How many moles are in 7.211x1024 compounds of zinc (II) chloride (ZnCl2)?

a)

6.02x1023 moles

b)

4.341x1048 moles

c)

0.08348 moles

d)

11.98 moles

e)

6.02x1023 formula units

f)

6.02x1023 compounds

g)

7.211x1024 compounds

h)

1 mole

i)

6.02x1023 atoms

j)

6.02x1023 molecules

1
2
3
4
1)
2)
3)
4)
36.

How many moles are in 7.211 x 1024 molecules of hydrogen chloride (HCl)?

a)

6.02x1023 moles

b)

4.341x1048 moles

c)

0.08348 moles

d)

11.98 moles

e)6.02x10^23 molecules
f)7.211 x 10^24 molecules
g)

1 mole

h)

6.02x1023 molecules

i)36.46 g
j)22.4 L
1
2
3
4
1)
2)
3)
4)
37.

How many moles are in 2.2x1024 atoms of argon?

a)6.02x10^23 moles
b)

1.3x1048 moles

c)0.27 moles
d)

3.7 moles

e)

2.2x1024 atoms

f)

1 mole

g)

6.02x1023 atoms

h)39.95 g
i)22.4 L
1
2
3
4
1)
2)
3)
4)
38.

Use the framework to set-up and solve this problem:

How many moles are in 2.2x1024 atoms of argon?

a)

6.02x1023 moles

b)

1.3x1048 moles

c)

0.27 moles

d)

3.7 moles

e)

6.02x1023 formula units

f)

6.02x1023 compounds

g)

2.2x1024 atoms

h)

1 mole

i)

6.02x1023 atoms

j)

6.02x1023 molecules

1
2
3
4
1)
2)
3)
4)
39.

Use the framework to set-up and solve this problem:

How many moles are in 7.211x1024 compounds of zinc (II) chloride (ZnCl2)?

a)

6.02x1023 moles

b)

4.341x1048 moles

c)

0.08348 moles

d)

11.98 moles

e)

6.02x1023 formula units

f)

6.02x1023 compounds

g)

7.211x1024 compounds

h)

1 mole

i)

6.02x1023 atoms

j)

6.02x1023 molecules

1
2
3
4
1)
2)
3)
4)
40.

What is the Molar Mass of water, H2O?

a)

18 g/mol

b)

17 g/mol

c)

15 g/mol

d)

10 g/mol

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