Utiliza la ecuación de los gases ideales PV = n. R. t para determinar : a) El volumen de 1, 20 moles de O2 a 27 grados c y 1 atmósfera de presión b) El numero de moles en 10 litros de CO2 a 20 grados c y 800 torr c) el peso molecular de un gas cuya densidad es de 1, 62 g / L a 200 grados kelvin y 1, 89 atmósferas.
La primera del compañero que respondio esta malExplicación :
1. v = ?
P = 1 atm
n = 1.
20 moles
T = 27 ºC + 273 = 300 K
R = 0.
0821 (L x atm / mol x K)
V = 1.
20 moles x 300 K x 0.
0821 (L x atm / mol K) `````````````````````````````````````````````````````````````````` 1 atm
V = 29.
56 L
2.
N = ?
V = 10 L
T = 20 ºC + 273 = 293 K
P = 800 torr 1 torr - - - - 0.
001316 atm
800 torr - - - - x x = 1.
0528 atm
R = 0.
0821 (L x atm / mol x K)
n = 10 L X 1.
0528 atm `````````````````````````````````````````` 293 K x 0.
0821 (L x atm / mol K)
n = 0.
437 moles
C) Mm = ?
D = P x Mm ```````````````` R x T
Mm = d x R x T ```````````````` P
Mm = 1.
62 g / L x 0.
0821 (L x atm / mol x K) x 200 K ```````````````````````````````````````````````````````````````` 1.
89 atm
Mm = 14.
07 g / mol.