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Worksheets2A: Mole Conversion Practice
Total questions: 12
Worksheet time: 3hrs 33mins
Name
Class
Date
1.
How many grams are in 3.3 mol of Potassium sulfide (K2S)?
a)
360 g
b)
454 g
c)
238 g
d)
132 g
2.
How many moles are in 16.94g of water?
a)
16.94 mol H2O
b)
0.9401 mol H2O
c)
305.3 mol H2O
d)
1.063 mol H2O
3.
How many moles are in 98.3 g of Aluminum Hydroxide (Al(OH)3)?
a)
2.14 mol
b)
1.26 mol
c)
6.63 mol
d)
5.9 mol
4.
What is the mass of 2.50 mol of oxygen gas O2?
a)
40 g
b)
80 g
c)
16 g
d)
32 g
5.
How many steps are in a gram to molecule conversion?
a)
1
b)
2
c)
3
d)
4
6.
How many grams of carbon are in 0.63 moles of carbon?
a)
3.79x1023 g C
b)
.0524 g C
c)
7.57 g C
d)
.800 g C
7.
How many molecules are in 3.6 grams of NaCl?
a)
0.06
b)
1.0x1021
c)
1.3x1026
d)
3.7x1022
8.
Copper (Cu) is a transition element used in the making of coins. Calculate the mass in grams of 0.0420 moles of copper.
a)
0.00697 g
b)
0.252 g
c)
2.67 g
d)
6.61 g
9.
One mole of a substance has the same number of particles as one mole of any other substance, regardless of what substances are being compared.
a)
True
b)
False
10.
How many atoms are in a 3.56 g sample of Cu?
a)
3.37 x 1022 Cu atoms
b)
6.02 x 1023 Cu atoms
c)
0.056 Cu atoms
d)
1 Cu atom
11.
How many oxygen molecules are in 3.36 L of oxygen gas (O2) at STP?
a)
0.150 mol O2
b)
2.02 x 1024 molecules O2
c)
2 molecules O2
d)
9.03 x 1022 molecules O2
12.
You have 8.65 x 1025 atoms arsenic. How many grams do you have?
a)
144 g As
b)
10,765 g As
c)
107 g As
d)
None of these
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