Homework Help: Chemistry

Posted by Monique on Thursday, October 13, 2011 at 10:11am.

Convert a pressure of 23.8 in. Hg into kilopascal.
Ok so I looked up kilopascal and it Said 1 Kpa = 1000 pa
So I began to set it up like this 23.8 / 29.2 x1000 am I correct

Chemistry - DrBob222, Thursday, October 13, 2011 at 1:48pm
I don't think that will get it. I would go this route.
23.8 inches x (25.4 mm Hg/1 inch Hg) x (1 atm/760mm) x (101.325 kPa/1 atm) = ??
There are MANY other steps that will work; I just use those conversion factors with which I'm familiar. I've memorized just a few conversions to help my tired brain.
Chemistry - Monique, Thursday, October 13, 2011 at 2:44pm
DrBob222 I used 29.2 in Hg because my book gave me 1 atm = 29.92 in. Hg. But why did you use 1atm/760mm

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