Question

What is the minimum amount of 6.0M H2SO4 necessary to produce 19.0g of H2(g) according to the reaction?
2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g)

Answer 1

mols H2 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols H2 to mols H2SO4.
Then M H2SO4 = mols H2SO4/L H2SO4. You know mols and M, solve for L.

Answer 2

2.1L

Answer 3

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