Question

la densidad de un gas es de 2,37 gr/lts a 25 °c y 873 torr cuál será su masa molecular ​

Answer 1

Respuesta:

50,48 g/mol

Explicación:

T = 25 ºC + 273 = 298 K

P = 873 / 760 = 1,1486 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 = 2.37 g/L x 0.0821 (atm L / mol K) x 298 K

          ````````````````````````````````````````````````````````

                            1,1486 atm

Mm = 50,48 g/mol