Question

cuantos gramos de SO3 ocupan 623ml a 8000mmhg y 127 grados centígrados.

Answer 1

t = 127 + 273 = 400K

V = 623 mL /1000 = 0.623 L

1 atm. ---------- 760 mmHg
     x    ............  8000 mmHg

x = 10.52 atm

Mm SO3 = 80 g/mol

R = 0.0822 (l atm/ mol K)

V x P =  n x R x T

n = V  x  P
     ``````````
     R x T

n (moles) =        0.623 L  x  10.52 atm
                     ````````````````````````````````````
                   0.0822 (l atm/ mol K) 400 K

n = 0.199 moles

n = masa / Mm

masa = n x Mm

masa = 0.199 mol x 80 g/mol

m = 15.92 g de SO3