A weather balloon filled with helium has a volume of 700 L at STP. To find the mass of helium which conversion factors would you

Question

2 years ago

6

use
A) 22.4 L/mol x 4 g/mol
B) 700 L / 4 g/mol
C) (22.4 L/mol / 700 L ) / (4 g/mol)
D) (700 L / 22.4 L/mol) (4 g/mol)

1 answer:

Vedmedyk [2.9K] · Answer 1 · 2022-12-10T03:43:23+03:00

3 0

Answer:

D: (700 L / 22.4 L/mol) (4 g/mol)

Explanation:

At STP, Molar volume of a gas = 22.4 L/mol

Now, we are told that helium has a volume of 700 L at STP.

Also, atomic mass of helium = 4 g/mol

Thus, the mass of helium is given as;

(700 L/22.4 L/mol) × 4 g/mol