I need help filling in the blanks! Still cant get the ideal gas equation down..

(P) (V) (n) (T)
2.00 atm 1.00L 0.500mol ? K

Memorize it: PV=nRT

2atm*1L=.5mol*n*Tin Kelvins

so R has to be in atm*L/Kelvins*mole
and looking that up,
R = 0.08205 L atm / mol·K

so then T=2/(.5*.082) Kelvins