1. The problem statement, all variables and given/known data The combined pressure of 32.0 g of CH4, 64.2 g NH3, and 100 g of CO2 is 9.42 atm. What is the partial pressure of the NH3 2. Relevant equations Dalton's Law of Partial Pressure = P=Pa +Pb + Pc ... The individual partial pressure follow the ideal gas law. For component A, (Pa)V=(nA)RT where nA is the number of oles in component A 3. The attempt at a solution I have converted all the grams to moles by dividing the grams by the compounds molar mass. I have no idea what to do from there. Someone please help.