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What mass of hydrogen gas (2.016 g/mol) can be produced by reacting 6.0 mols of aluminum (26.98 g/mol) with hydrochloric acid (36.46 g/mol)?

2Al+ 6HCl yeilds 2AlCl3 + 3H2

2007-04-24 08:32:18 · 4 answers · asked by Cameron 1 in Science & Mathematics ➔ Chemistry

4 answers

2Al(s) + 6HCl(aq) --> 2AlCl3(s) + 3H2(g)

6 moles Al will yield 3/2*6 = 9 moles H2

9 moles H2 weighs 18.144 g

2007-04-24 08:40:36 · answer #1 · answered by Dr Dave P 7 · 0⤊ 0⤋

Since 2 mols of Al produce 3 moles of H2, 6 moles of Aluminium will produce 9 moles of H2.

2007-04-24 08:37:52 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋

6 moles of aluminum produces 9 moles hydrogen
9x2.016 = 18.144g of H2

2007-04-24 08:36:47 · answer #3 · answered by Jabberwock 5 · 0⤊ 0⤋

ask mr. padget 1-800-4go-fish

2007-04-24 08:35:50 · answer #4 · answered by Anonymous · 0⤊ 1⤋