Tritium (Hydrogen-3) is a radioactive nuclide with a half-life of 4500 days. It decays to an isotope of helium. Determine the time required fro 90% of the sample of tritium to decay.

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)

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?