Answer
a. $n=0.384 × 10^{-4} mol$
b. $P=179 atm$
c. $V= 3.66 L$
d. $T = 332 K$
Work Step by Step
a.$n = (7.74 × 10^{3} × 9.87×10^{-6} ×12.2 × 10^{-3})/(0.082 × 298) = 0.38 × 10^{-4} mol$
b. $P = (0.421 × 0.082 × 223)/(43.0 × 10^{-3}) = 179 atm$
c. $n = (4.4 × 10^{-2} × 0.082 × 604)/(455 × 1.31 × 10^{-3} ) = 3.66 L$
d. $T = (745 × 1.31 × 10^{-3} × 11.2 )/(0.401 × 0.082) = 332.4 K$
