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Unit 6-1 And 6-2 Review
Test Description: No equations conversion factors
Instructions: Answer all questions to get your test result.
1) How many moles are in 24 grams of Carbon?
A
4
B
2
C
3
D
1
2) How many atoms are in 28 grams of Silicon?
A
1.204 x 10^23
B
3.01 x 10^23
C
2 x 10^23
D
6.02 x 10^23
3) How many grams are in 2.5 moles of Neon?
A
20 moles
B
50 moles
C
0.125 moles
D
25 moles
4) What is the molar mass of a substance that is 250 moles in 25 grams
A
0.1 g/mol
B
10 g/mol
C
6250 g/mol
D
5 g/mol
5) How many grams are in 1.204 x 10^23 atoms of carbon?
A
0.2 grams
B
12 grams
C
20 grams
D
2.4 grams
6) How many particles are in 200 grams of CaCO3 calcium carbonate?
A
1.804 x 10^24 particles
B
6.02 x 10^23 particles
C
1.204 x 10^23 particles
D
3.01 x 10^23 particles
7) How many grams are in 2 moles of H2O water?
A
18 grams
B
36 grams
C
9 grams
D
4.5 grams
8) What is the molar mass of Na2(CO3)?
A
90 grams/mole
B
106 grams/mole
C
53 grams/mole
D
92 grams/mole
9) How many grams in 1.806 x 10^24 particles of LiCl?
A
126 grams
B
3 grams
C
6 grams
D
112 grams
10) What is the empirical formula for C8H22O14?
A
C2H11O5
B
C8H22O14
C
C2H11O7
D
C4H11O7
*select an answer for all questions
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