0.050 mole of gas was collected in the lab at a temperature of 22.0 degrees celsius and a pressure of 0.987 atm. what volume will the gas occupy under these conditions

at stp, .05 mole occupies .05 * 22.4 = 1.12 L

since PV=kT, PV/T = k, a constant
So, you want V such that
0.987V/(22.0+273.15) = 1*1.12/273.15
V = 1.226 L