Multiple Choice
When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calculate the volume of H2(g) at 30.1°C and 0.85 atm that can be formed when 275 mL of 0.725 M HCl solution reacts with excess Mg to give hydrogen gas and aqueous magnesium chloride. Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
(R = 0.08206 L • atm/K • mol)
A) 3.4 × 10-3 L
B) 2.2 L
C) 2.9 L
D) 5.8 L
E) 11.7 L
Correct Answer:
Verified
Correct Answer:
Verified
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