Is a toothpick a good model for showing the strength and brittleness of salt ?

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)

During which time interval does the object travel approximately 10 meters

Which statement describes james chadwick’s discovery.