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WorksheetsStoichiometry Review #2 Calculating Conversions
Total questions: 10
Worksheet time: 36mins
Name
Class
Date
1.
How many moles are in 19.82 g Mg?
a)
1.226mol Mg
b)
481.7mol Mg
c)
1.000mol Mg
d)
0.8156 mol Mg
2.
Determine the molar mass for carbon tetrachoride (CCl4)
a)
153.823 g/mol
b)
118.37 g/mol
c)
189.35 g/mol
d)
47.464 g/mol
3.
How many molecules are in 2.5 mol of NaCl?
a)
1.51x1023
b)
146
c)
4.15
d)
1.51x1024
4.
How many atoms of carbon are in 6.00g of carbon?
a)
1.20x1024atoms C
b)
6.02x1023atoms C
c)
3.01x1023atoms C
d)
1.50x1023atoms C
5.
How many steps are in a gram to mole conversion?
a)
1
b)
2
c)
3
d)
4
6.
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
7.
If you use of 0.672 moles of magnesium. How many liters of magnesium would you need in the graduated cylinder?
a)
0.15L Mg
b)
15.05L Mg
c)
105L Mg
d)
19,05L Mg
8.
How many moles does 65 L of CO2 gas contain?
a)
2.9 Moles CO2
b)
29 Moles CO2
c)
1.9 Moles CO2
d)
39 Moles CO2
9.
What is the mass in grams of 2.3456 moles of W?
a)
431.22 grams
b)
6.02 grams
c)
207.2 grams
d)
486.01 grams
10.
What is the molar mass of fluorine gas?
(beware!)
(beware!)
a)
18.998 g/mol
b)
38 g/mol
c)
9 g/mol
d)
18 g/mol
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