1. 24.8 g of oxygen contains
a. 9.33 x 1023 oxygen atoms
b. 50 amu
c. none of these
d. 1.49 x 1025 oxygen molecules
e. 1.55 mol of oxygen molecules
2. 1.2 moles of oxygen atoms represent
a. 0.4 g
b. 0.72 x 1024 atoms
c. 1.9 x 101 atoms
d. 1.0 x 102 g
e. none of these
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1. 24.8 g of oxygen contains a. 9.33 x 1023 oxygen atoms b. 50 amu c....
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