8 grams of hydrogen and 32 grams of oxygen will combine to form how many grams of water?

Iwill give extra points to who gets this right

Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)

If a solution had a ph of 7 what is the solution