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Moles
Test Description: Calculating number of moles from mass and vice versa
Instructions: Answer all questions to get your test result.
1) Calculate the number of moles in 146.25 g of sodium chloride (NaCl)
A
2.5
B
58.5
C
8570.25
D
0.4
2) Calculate the number of moles in 50 g of calcium carbonate (CaCO₃)
A
0.5
B
500
C
2
D
5000
3) Calculate the number of moles in 24 g of carbon (C)
A
1
B
2
C
0.5
D
288
4) Calculate the number of moles in 64 g of oxygen (O₂)
A
2048
B
0.5
C
2
D
4
5) Calculate the number of moles in 7 g of nitrogen (N₂)
A
2
B
0.25
C
0.5
D
4
6) Calculate the mass of 0.4 moles of NaCl
A
146.25
B
23.4
C
2
D
0.007
7) Calculate the mass of 3.2 moles of calcium carbonate (CaCO₃)
A
32
B
0.032
C
320
D
3.2
8) Calculate the mass of 1.2 moles of carbon (C)
A
14.4
B
10
C
1
D
0.1
9) Calculate the mass of 0.6 moles of oxygen (O₂)
A
3
B
0.02
C
53.3
D
19.2
10) Calculate the mass of 2.3 moles of nitrogen (N₂)
A
0.07
B
64.4
C
32.3
D
0.16
*select an answer for all questions
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