Answer to Question #154892 in General Chemistry for Zarab Ali

Question

8dm3 of O2 gas was collected at 25C temperature and 25 atm pressure ,find the number of moles of gas

Answer 1

PV = n RT

P = 25atm

V = 8dm³

R = 0.0821Latm/kmol

T = 25⁰C = 298K

PV = n RT

25×8 = n 0.0821×298

200 = n 24.46

n = 200/24.46

n = 8.17

8.17 no. of moles of gas