[Zoloft]

Heat of fusion using these variables...?
"The :delta: H_f of gaseous dimethyl ether (CH3OCH3) is -185.4 kJ/mol; the vapor pressure is 1.00 atm at -23.7C and 0.526 atm at -37.8C (a) Calculate :delta: H_vap of dimethyl ether. (b)Calculate :delta: H_f of liquid dimethyl ether."

So finding :delta: H_vap was rather easy, all I did was solve for the Clausius-Clapeyron equation. So the result was 22.47 kJ/mol = :delta: H_vap of dimethyl ether.

BUT, I have no idea how to find the :delta: H_f of liquid dimethyl ether.

HMMMMMMM, any direction would be appreciated.