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July 24, 2014

Homework Help: Inorganic

Posted by Tracy on Tuesday, November 20, 2007 at 5:37pm.

Heyy, I have a quick question. I am doing binary systems, and I have a water/propanol system, and it says " 0.433 mole fraction propanol (71.7% propanol by weight)" does this mean that the mole fraction of water is 0.433 or propanol? Cause if propanol is 71.7% then wouldn't it be the bigger fraction, and if Xprop + Xwater = 1 then then other fraction would be 0.567 and wouldn't that be bigger?

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