APFIVE Elemental Composition By Mass
Calculate the percent composition of oxygen in calcium nitrate, $$Ca(NO_3)_2$$, using the data provided in the table.
| Element | Atomic Mass (g/mol) |
|---|---|
| Ca | 40.08 |
| N | 14.01 |
| O | 16.00 |
A
42.0%
B
58.5%
C
67.8%
D
34.9%
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