Homework Help: Chemistry

Posted by Julie on Tuesday, February 16, 2010 at 8:42pm.

How much energy (in kilojoules) is required to convert 280mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
Its heat of vaporization is +26.5 kJ/mol at its boiling point.

Chemistry - DrBob222, Tuesday, February 16, 2010 at 8:49pm
Use the density to convert mL ether to grams.
Then q = mass x heat vaporization. You will need to change grams ether to moles or change heat vap to kJ/g. Watch the units.

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