so here i am doing my hw worksheet on the ideal gas law/ghram's law ad i have gotten to this one problem where i am totally stuck and confused. Please help me by telling me how to set this up and giving me tips, if necessary.

What is the mass(in grams) of ammonia gas(NH{tiny #at the bottom}3,17g/mole contained in a 4.00 flask at 32.5 degrees Celsius and 1.6atm?