Problem: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al (s) + 6HCl (aq) → 2 AICI3 (aq) + 3H2 (g) What volume of H2 (g) is produced when 8.40 g of Al (s) reacts at STP?

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When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 

2 Al (s) + 6HCl (aq) → 2 AICI3 (aq) + 3H2 (g) 

What volume of H2 (g) is produced when 8.40 g of Al (s) reacts at STP?

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