The number of positive charges in the nucleus of an atom is equal to to an altitude where the pressure is 380 mmhg and the temperature is 54°c

Evaluate this exponential expression,8. (2 + 3)2 – 42

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 is the number of moles in 15.0 g ash3?