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April 17, 2014

Homework Help: Chemistry

Posted by Zach on Sunday, July 15, 2012 at 12:07am.

The reaction for my lab is
Mg(s)+2HCl(aq)--> MgCl2(aq)+H2(g)

I need to find the pressure of the hydrogen gas.
Initial Pressure = 0.98692 atm
Total Pressure = 1.64816 atm

I don't know if I calculated the pressure of hydrogen gas correctly. I used the formula Total Pressure=Initial Pressure+Pressure of H2+Pressure of H2O
This is what I got for an answer.
Pressure of H2=1.64816-0.98692-0.0313=0.6926atm

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