A compound contains 48 g of C and 8 g of H. What is its empirical formula? (C = 12, H = 1)
Answer and explanation
Correct answer: D. CH
- Step 1: Moles of C ; moles of H .
- Step 2: Divide by the smaller number: the ratio C : H is .
- Step 3: Empirical formula: CH.
Answer
CH.
Why not the others: CH: the ratio of moles is inverted. CH: the masses are treated as equal numbers of atoms. CH: the ratio is not simplified correctly.
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