Answer :
Final answer:
The percentage composition of elements in a compound does not change with the size of the sample. Therefore, a 2-g sample of hydrogen chloride would still contain 2.74% hydrogen and 97.3% chloride.
Explanation:
The percentage composition of an element in a compound is calculated by dividing the mass of the element by the total mass of the compound, then multiplying by 100. In the case of the hydrogen chloride compound, the percentage of hydrogen was found to be 2.74%, with the balance 97.3% being chloride. This percentage is independent of the size of the sample under consideration. Therefore, if we were to analyse a 2-g sample of hydrogen chloride or indeed another quantity, the percentage of hydrogen would still be 2.74% and the percentage of chloride would be 97.3%.
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