For a gas sample whose total pressure is 740 torr, what are the partial pressures if the gas present consists of 1.6 mol of X, 0.39 mol of Y, and 0.089 mol of Z?
a) 409.6 torr, 100.8 torr, 22.4 torr
b) 489.6 torr, 80.8 torr, 22.4 torr
c) 409.6 torr, 80.8 torr, 22.4 torr
d) 489.6 torr, 100.8 torr, 22.4 torr
