Percentage Composition

2. Calculate the mass of carbon in 82.0 grams of propane (C3H8). _____ 3. Calculate the grams of nitrogen in 125.0 g of ammonium nitrate. _____ 4. An 8.20 g piece of magnesium combines completely with 5.40 g of oxygen to form a compound. What is the percent composition (%Mg and … ................
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