Question

Calcula la densidad de oxígeno(O2), a 745 torre y 24°C

Answer 1

Ley de los gases ideales V x P = n x R x T

n = m/Mm ; d = m/v

sustituir:

V x P = m/Mm x R x T

P x Mm = m/V x R x T

P x Mm = d x R x T

P = 745 torr

1 torr ---- 0.001316 atm

745 torr ---- x

x = 0.9804 atm

T = 24 ºC + 273 = 297 K

R = 0.082 (L atm / mol K)

Mm O2 = 32 g/mol

calcular densidad

d = (0.9804 atm x 32 g/mol ) / (0.082 L atm / mol K) x 297 K)

d = 1.28 g/L