How many milligrams of a mixture containing equal numbers of moles of CH and N2 at 10.0 atm total pressure will dissolve in 1.00 L of water at 20 degrees C?

Question

Answer should be 2.1 x 10^2 mg

Answer 1

What is CH?
What is the solubility of CH?
What is the solubility of N2 at 10.0 atm pressure.