What is the work when a gas expands from 0.666 L to 2.334 L against an external pressure of 2.07 atm?

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 compound contain an iron with a 3+ charge

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.