JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
On complete combustion 1.0 g of an organic compound (X) gave 1.46 g of \(\mathrm{CO}_2\) and 0.567 g of \(\mathrm{H}_2 \mathrm{O}\). The empirical formula mass of compound \((\mathrm{X})\) is ________ g.
(Given molar mass in \(\mathrm{g} \mathrm{mol}^{-1} \mathrm{C}: 12, \mathrm{H}: 1, \mathrm{O}: 16\))
- A 30
- B 45
- C 60
- D 15
Answer & Solution
Correct Answer
(A) 30
Step-by-step Solution
Detailed explanation
Moles of ' C ' \(=\mathrm{n}_{\mathrm{CO}_2}=\frac{1.46}{44}=0.033\) Moles of ' C ' \(=\mathrm{W}_{\mathrm{C}}=0.033 \times 12\) Moles of 'H' \(=2 \times \mathrm{n}_{\mathrm{H}_2 \mathrm{O}}=2 \times \frac{0.567}{18}=0.063\) Mass of ' H ' \(=0.0063\) Mass of Oxygen…
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