Mole Calculations Worksheet With Answer Key
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1Mole Calculations Worksheet
***Answers are included so that you can know if you are getting the problems right. To
receive credit for this assignment you must show set up for all problems using dimensional
analysis method***
1. How many moles of Na are in 42 g of Na?
2. How many moles of O are in 8.25 g of O?
3. How much does 2.18 mol of Cu weigh?
4. What is the mass of 0.28 mol of iron?
9
5. How many moles are in 1.0 x 10
atoms?
25
6. What is the mass of 1.20 x 10
atoms of sulfur?
7. How many moles of CO molecules are in 52 g of CO?
8. How many moles of C
H
are in 124 g?
2
6
9. How many moles of CCl
are there in 56 g?
4
10. How much does 2.50 mol of H
SO
weigh?
2
4
11. How much does 0.25 mol of Fe
O
weigh?
2
3
12. How many molecules are there in 52 g of CO?
13. How many formula units are in 22.4 g SnO
?
2
14. How many molecules are in 116 g CCl
?
4
23
15. What is the mass of 3.01 x 10
formula units of Fe
O
?
2
3
25
16. What is the mass of 1.2 x 10
molecules of CO?
17. How many formula units are in 5.33 mol of CuCl
?
2
Answers
-15
1. 1.8 mol Na
2. 0.516 mol O
3. 139 g Cu
4. 16 g Fe
5. 1.7 x 10
mol
6. 639 g S
24
7. 1.9 mol
8. 4.12 mol
9. 0.36 mol
10. 245 g
11. 40. g
12. 1.1 x 10
molecules
22
23
2
13. 8.95 x 10
formula units
14. 4.54 x 10
molecules
15. 79.9 g Fe
O
16. 5.6 x 10
g CO
2
3
24
17. 3.21 x 10
formula units
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