bladencharles2259 bladencharles2259
  • 28-10-2020
  • Chemistry
contestada

A mixture of gases contains 8.00 g of He, 29.96 g of Ar, and 48.00 g of O2. What is the mole fraction of He in this mixture

Respuesta :

lawalj99 lawalj99
  • 02-11-2020

Answer:

0.47

Explanation:

Mole = Mass / Molar mass

Helium;

Mole = 8 / 4 = 2

Argon;

Mole = 29.96 / 39.95 = 0.75

Oxygen;

Mole = 48 / 32 = 1.5

Total mole = 2 + 0.75 + 1.5 = 4.25

Mole fraction = Mole of He / Total mole

Mole Fraction = 2 / 4.25 = 0.47

Answer Link

Otras preguntas

America changes through times of conflict, growth, or peace and cooperation?
Which primary source document would give you insight into how the Great Chicago Fire affected working-class families?
What do you think is the most fascinating aspect of the internet?
Milwaukee is 121 mi (air miles) due west of Grand Rapids. Maria drives 255 mi in 4.75 h from Grand Rapids to Milwaukee around Lake Michigan. Find her average dr
Each leg of a 45-45-90 triangle has a length of 6 units. What is the length of its hypotenuse?
4. What are some of the things scientists might do to analyze data?
The article identifies a ''tacit racial hierarchy'' in the animated film, Rio 2, which replicates parttens in racial stereotyping throughout movie history. Base
why is pi the best example of an exponent
What is a problem solving by following steps to draw a conclusion?
the building blocks of proteins are known as