Question

Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of

hydrogen gas in liters (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminium and
50.0 mL of 5.0 M sulfuric acid are combined for the reaction?
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Answer 1

`2al + 3h2so4 = > al2(so4)3 + 3h2 \\ eqvt \\ = > (5.4)/(27) = > (5 * 50)/(1000) \\ .2 \: mol = > .25 \: mol \\ \\ so \: .25 \: is \: limiting \: reagent \\ according \: to \: ideal \: gas \: equation \\ pv = nrt \\ v = (nrt)/(p) \\ v = (.25 * .082 * 300)/(1) \\ = (1)/(4) * 8.2 * 3 \\ = 2.05 * 3 \\ = 6.15litre \\ thank \: you`