180k views
2 votes
A gas mixture contains 3.50 moles of helium, 5.00 moles of krypton and 7.60 moles of neon. A) What is the mole fraction for each gas

User Kraskevich
by
5.0k points

1 Answer

4 votes

Answer:

.217, .311, and .472, respectively.

Step-by-step explanation:

The total number of moles of gas is 3.50 + 5.00 + 7.60 = 16.10 (to preserve significant digits).

X of helium=3.50/16.10 = .217

X of krypton=5.00/16.10 = .311

X of neon=7.60/16.10 = .472

User Majdi
by
5.3k points