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November 27, 2014

Homework Help: Chemistry

Posted by Priya on Thursday, May 5, 2011 at 5:58pm.

Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas. Suppose we react an excess of magnesium metal with 13.2 mL of a 3.00 M solution of hydrochloric acid and collect all of the hydrogen in a balloon at 25oC and 1.00 atm. What is the expected volume of the balloon?
A) 40.6 L
B) 0.0406 L
C) 0.215 L
D) 0.484 L
E) 0.97 L

I got E as my answer but the CORRECT answer is D. I wanna know where I went wrong.

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