The element Osmium has _ neutrons in its nucleus

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)

Which statement best describes the flow of energy in this scenario

Calculate the concentration of all species in a 0.165 m solution of h2co3.