Chemistry

Question Analysis
This question tests the student's ability to determine the molecular formula from the given percent composition and molar mass.

Key Concept Explanation
The empirical formula is first determined from the percent composition, and then the molecular formula is found by using the molar mass of the compound.

Step-by-step Solution
1. Assume a 100 g sample
Mass of , ,
2. Convert mass to moles
Moles of
Moles of
Moles of
3. Calculate the empirical formula mole ratio
Divide all mole values by the smallest mole value ( ):

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