Three 1.0-L flasks, maintained at 308 K, are connected to each other with stopcocks. Initially, the stopcocks are closed. One of the flasks contains 1.0 atm of N2; the second, 2.0 g of H2O; and the...

Three 1.0-L flasks, maintained at 308 K, are connected to each
other with stopcocks. Initially, the stopcocks are closed. One of the
flasks contains 1.0 atm of N2; the second, 2.0 g of H2O; and the
third, 0.50 g of ethanol, C2H6O. The vapor pressure of H2O at 308 K
is 42 mmHg, and that of ethanol is 102 mmHg. When the stopcocks
are opened and the contents mix freely, what is the pressure?