al3xzandria
contestada

a mylar balloon is inflated with helium at T=293k to a pressure of 1.15 atm. If the volume of the balloon is 0.750 L, how many atoms of helium are in the balloon?

Respuesta :

malika8888

[tex]PV=nRT \\ 1.15 \times 0.75 = n \times 0.082 \times 293 \\ 0,8625 \: = 24,026x \\ x = 0.036 \: mol \\ n = \frac{m}{MM} \\ 0.036 = \frac{m}{4} \\ m = 0.036 \times 4 \\ m = 0.144 \: g[/tex]

Otras preguntas