2Al + 3H2SO4 → Al2(SO4)3 + 3H2
Mole of Al taken = \(\frac{5.4 }{ 27}\) = 0.2
Mole of H2SO4 taken = \(\frac{{50 \times 5}}{{1000}} = 0.25\)
As \(\frac{0.2}{2} > \frac{0.25}{3}, \text{H}_2\text{SO}_4\) is limiting reagent
Now, moles of H2 formed = \(\frac{3}{3} \times 0.25 = 0.25\)
Therefore Volume =\(0.25 \times 0.082 \times \frac{300}{1} = \frac{24.6}{4} = 6.15 \, \text{L}\)
During "S" estimation, 160 mg of an organic compound gives 466 mg of barium sulphate. The percentage of Sulphur in the given compound is %.
(Given molar mass in g mol\(^{-1}\) of Ba: 137, S: 32, O: 16)