Chemistry

Question Analysis
This question assesses the student's ability to determine the empirical formula from the percent composition of a compound.

Key Concept Explanation
To find the empirical formula, convert the percent composition to moles, then find the simplest whole-number ratio of the elements.

Step-by-step Solution
1. Assume a 100 g sample
Mass of
Mass of
Mass of
2. Convert mass to moles
Moles of
Moles of
Moles of
3. Calculate the mole ratio (divide by the smallest mole value, 3.125 mol)

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