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8. How many molecules of disulfur tetrachloride have a mass of 10.3 g?
a. 6.2 x 1023 molecules
b. 6.2 x 1022 molecules
c. 3.01 x 1023 molecules
d. 3.01 x 1022 molecules
e. 0.05 molecule
7. What is the mass of 4.50 x 1023 atoms of magnesium, Mg?
a. 7.48 x 1045 g
b. 18.2 g
c. 0.748 g
d. 9.00 g
e. 1.82 x 1047 g
6. What is the mass in grams of 0.250 mol of the common antacid calcium carbonate?
a. 0.0250 g
b. 25.0 g
c. 1.50 x 1023 g
d. 0.0400 g
e. 400.0 g
8. How many molecules of disulfur tetrachloride have a mass of 10.3 g?
a. | 6.2 x 1023 molecules | |
b. | 6.2 x 1022 molecules | |
c. | 3.01 x 1023 molecules | |
d. | 3.01 x 1022 molecules | |
e. | 0.05 molecule |
7. What is the mass of 4.50 x 1023 atoms of magnesium, Mg?
a. | 7.48 x 1045 g | |
b. | 18.2 g | |
c. | 0.748 g | |
d. | 9.00 g | |
e. | 1.82 x 1047 g |
6. What is the mass in grams of 0.250 mol of the common antacid calcium carbonate?
a. | 0.0250 g | |
b. | 25.0 g | |
c. | 1.50 x 1023 g | |
d. | 0.0400 g | |
e. | 400.0 g |
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Lelia LubowitzLv2
17 Dec 2019
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