Help with chemistry stuff-need help asap-anyone?

on part d, the water vapor, h2o is known to deviate more than the h2 gas. water is polar, it has a postive region and a negative region and when it bounces off other water molecules the polar areas could make a moving water molecule deviate. but h2 gas is non polar and when those molecules fly around and bounce off things inside the container they act idealy like little bb's bouncing around without sticking to one another. water deviates more from ideal. i can help more later. in part one, entropy favors the formation of the things of lower energy state. thats why the reaction happens spontaneously. in part 2 ume ideal gas behaviour and calculate n. use the equation pv=nrt. they gave you v; it 90mls; they gave you T; its 25 deg c, change it to kelvin; r is a constant that you look up in the back of the book. they gave you pressure of one atmosphere in a sneaky way. when trapping a gas over water the pressure in the jar is one atmosphere. the partial pressure 745mm will be used later change it to another form such as pascals or atmospheres etc if you need to, solve for n, mols of stuff in the jar. then use partial perssures to see what percentage is h2 gas. the total pressure is one atmosphere. the percent of h2o will be vapor pressure of watrer divided by total pressure. make sure all the units match up.