Multiple Choice
Magnesium metal (0.100 mol) and hydrochloric acid (0.500 mol HCl) are combined and react to completion. What volume of hydrogen gas, measured at STP, is produced? Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
(R = 0.08206 L • atm/K • mol)
A) 2.24 L of H2
B) 4.48 L of H2
C) 5.60 L of H2
D) 11.2 L of H2
E) 22.4 L of H2
Correct Answer:

Verified
Correct Answer:
Verified
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