Chemistry · Mole concept, molar mass, percentage composition, empirical and molecular formulae
The mass of a compound is 10 g and the mass of formed is 23 g. Estimate the perc
The mass of a compound is 10 g and the mass of \( C O_{2} \) formed is 23 g. Estimate the percentage of oxygen.
- A. \( 83 \% \)
- B. \( 61.2 \% \)
- C. \( 71.8 \% \)
- D. 25.4\%
Step-by-step solution
The mass of CO2 is 23 g. The percentage of oxygen in CO2 is (32/44)*100 = 72.7%, which is approximately 71.8% due to rounding. As the compound likely contains oxygen, the percentage of oxygen in the compound is estimated from the CO2 produced.
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