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 =\(0.25 \times 0.082 \times \frac{300}{1} = \frac{24.6}{4} = 6.15 \, \text{L}\)
X g of nitrobenzene on nitration gave 4.2 g of m-dinitrobenzene. X =_____ g. (nearest integer) [Given : molar mass (in g mol\(^{-1}\)) C : 12, H : 1, O : 16, N : 14]
Fortification of food with iron is done using $\mathrm{FeSO}_{4} .7 \mathrm{H}_{2} \mathrm{O}$. The mass in grams of the $\mathrm{FeSO}_{4} .7 \mathrm{H}_{2} \mathrm{O}$ required to achieve 12 ppm of iron in 150 kg of wheat is _______ (Nearest integer).} (Given : Molar mass of $\mathrm{Fe}, \mathrm{S}$ and O respectively are 56,32 and $16 \mathrm{~g} \mathrm{~mol}^{-1}$ )