2. Calculate [OH-] of a solution when its [H+] has the following values:

[H+] = 1 x 10-1

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

Which best describes how johannes kepler developed his laws of planetary motion

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.