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Test Description: Get your calculator and mole machine for some mole fun!
Instructions: Answer all questions to get your test result.
1) 3.2 moles of calcium chlride have a mass of ____grams
A
240
B
355
C
0.56
D
0.028
2) 347 g of magnesium oxide is _____ moles
A
5.22
B
17.4
C
8.68
D
13880
3) 3.2 moles of zinc nitrate has ____ molecules
A
5.3 E -24
B
6.02 E 23
C
0.013
D
1.93 E 24
4) what is the percent by mass of carbon in a molecule of carbon tetrachloride
A
26%
B
8%
C
79%
D
13%
5) What percent by mass is oxygen in aluminum oxide?
A
18%
B
47%
C
50%
D
26%
6) How many moles of tungsten are in 8.34 E 24 atoms of tungsten?
A
0.075
B
13.9 E 47
C
2544
D
13.9
7) how many moles of calcium phosphide are in 250 grams
A
1.4
B
182
C
1505
D
.728
8) How many liters of gas are in 3 moles of helium
A
268.8
B
12
C
67.2
D
0.4
9) what perecent by mass is sodium of sodium chloride
A
50%
B
2.5%
C
60%
D
40%
10) Sodium is a ___
A
gas
B
salt
C
metal
D
halogen
*select an answer for all questions
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