determina la masa molecular de un gas que tiene una densidad de 2,39 g/l a 40°C y una presion de 730 torr
Respuestas a la pregunta
Contestado por
61
Mm = ?
T = 40 ºC + 273 = 313 K
P = 730 / 760 = 0.9605 atm
R = 0.0821 ( atm L/ mol K)
d = m/v ; n = masa/Mm
P V = n R T DESPEJAR n
n = P V SUSTITUIR n = m/Mm
``````
R T
m = P V trasponer V
```` ``````
Mm R T
m = P Mm dode d = m/v
```` ````````
V R T
d = P Mm despejar Mm
``````````
R T
Mm = d R T
``````````
P
Mm = 2.39 g/L x 0.0821 (atm L / mol K) x 313 K
````````````````````````````````````````````````````````
0.9605 atm
Mm = 63.94 g/mol
T = 40 ºC + 273 = 313 K
P = 730 / 760 = 0.9605 atm
R = 0.0821 ( atm L/ mol K)
d = m/v ; n = masa/Mm
P V = n R T DESPEJAR n
n = P V SUSTITUIR n = m/Mm
``````
R T
m = P V trasponer V
```` ``````
Mm R T
m = P Mm dode d = m/v
```` ````````
V R T
d = P Mm despejar Mm
``````````
R T
Mm = d R T
``````````
P
Mm = 2.39 g/L x 0.0821 (atm L / mol K) x 313 K
````````````````````````````````````````````````````````
0.9605 atm
Mm = 63.94 g/mol
Contestado por
5
Respuesta:
Explicación:
v=?
V=2.39
T=g/1
P1=40°c+730=720°tu
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