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What is the mass percent of iron in iron(III) chloride (FeCl_3)?
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3. Chemical Reactions
Mass Percent
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What is the mass percent of carbon in carbon monoxide (CO)?
A
50.0%
B
42.9%
C
57.1%
D
28.6%
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Identify the elements present in carbon monoxide (CO), which are carbon (C) and oxygen (O).
Find the atomic masses of carbon and oxygen from the periodic table: carbon is approximately 12.0 g/mol and oxygen is approximately 16.0 g/mol.
Calculate the molar mass of carbon monoxide by adding the atomic masses of carbon and oxygen: \(M_{CO} = M_C + M_O\).
Calculate the mass percent of carbon in CO using the formula: \(\text{Mass \% of C} = \left( \frac{M_C}{M_{CO}} \right) \times 100\%\).
Substitute the values into the formula and simplify to find the mass percent of carbon in carbon monoxide.
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