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Mole To Particles Conversion
Test Description: Basic questions on mole to particles conversion
Instructions: Answer all questions to get your test result.
1) Calculate the molar mass of CaCOH
A
69.09 g/mol
B
159.5 g/mol
C
2.35 x 1023 atoms
D
0.144 moles
2) Calculate the molar mass of CuSO4.
A
69.09 g/mol
B
2.35 x 1023 atoms
C
0.144 moles
D
159.5 g/mol
3) Calculate the molar mass of Cr4(P2O7)3.
A
69.09 g/mol
B
729.8 g/mol
C
138.47 g/mol
D
4.6 mg
4) How many atoms are in 5 moles of silver?
A
3.01 x 10^26 atoms
B
3.01 x 10^25 atoms
C
3.01 x 10^24 atoms
D
3.01 x 10^23 atoms
5) How many moles of CO are there in 1.40 x 10^24 molecules?
A
2.33
B
23
C
10.4 x 10^24
D
5.4
6) How many sand particles are there in 4.5 moles of sand?
A
2.71
B
5.42
C
2.71 x 10 ^23
D
2.71 x 10 ^24
7) How many moles are in 3.01 × 10^24 molecules of (NH4)2SO4
A
4
B
5
C
3
D
2
8) How many moles of nitrogen are there in 4.3 × 10 ^23 molecules?
A
0.714
B
5.78
C
2.5
D
0.014
9) A sample of carbon contains 9 x 10 ^23 atoms of carbon. How many moles of carbon are there in the sample?
A
3.74 moles
B
2 moles
C
5 moles
D
1.5 moles
10) How many atoms are found in 4.75 moles of Fe
A
2.86 x 10 ^ 24
B
2.86 x 10 ^ 28
C
10.5 x 10 ^ 24
D
280 x 10 ^ 24
*select an answer for all questions
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