An organic acid is composed of carbon (70.57\%) , hydrogen (5.93%), and oxygen (23.50\%) . Is molar mass is 136.15g / m * o * l Determine the molecular formula of the compound

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

What does the cell nucleus do or, how does it function?

Which compound contain an iron with a 3+ charge