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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
3
B
2
C
4
D
1
2) How many atoms are in 28 grams of Silicon?
A
2 x 10^23
B
3.01 x 10^23
C
1.204 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
10 g/mol
B
6250 g/mol
C
5 g/mol
D
0.1 g/mol
5) How many grams are in 1.204 x 10^23 atoms of carbon?
A
12 grams
B
0.2 grams
C
2.4 grams
D
20 grams
6) How many particles are in 200 grams of CaCO3 calcium carbonate?
A
6.02 x 10^23 particles
B
1.804 x 10^24 particles
C
3.01 x 10^23 particles
D
1.204 x 10^23 particles
7) How many grams are in 2 moles of H2O water?
A
18 grams
B
9 grams
C
36 grams
D
4.5 grams
8) What is the molar mass of Na2(CO3)?
A
90 grams/mole
B
106 grams/mole
C
92 grams/mole
D
53 grams/mole
9) How many grams in 1.806 x 10^24 particles of LiCl?
A
112 grams
B
126 grams
C
6 grams
D
3 grams
10) What is the empirical formula for C8H22O14?
A
C2H11O5
B
C4H11O7
C
C8H22O14
D
C2H11O7
*select an answer for all questions
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