Tính nồng độ phần trăm của dung dịch NH4OH 15M, biết rằng khối lượng riêng là 0.899 g/ml, khối lượng mol phân tử là 17.03

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)

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)