Helium has a density of 1.79 x 10-4 g/mL at standard temperature and pressure. A balloon has a volume of 6.3 liters. Calculate the mass of helium that it would take to fill the balloon. Be sure to follow significant figure rules when calculating the answer.

Question

Chemistry

Jaslene Yang

26 November, 12:58

Helium has a density of 1.79 x 10-4 g/mL at standard temperature and pressure. A balloon has a volume of 6.3 liters. Calculate the mass of helium that it would take to fill the balloon. Be sure to follow significant figure rules when calculating the answer.

+1

Answers (1)

Know the Answer?

Deanna Hampton · Answer 1

Density = 1.79x10⁻⁴ g/mL

1 L = 1000 mL

6.3 L = ?

6.3 x 1000 = > 6300 mL

Mass of helium:

m = D x V

Therefore:

m = (1.79x10⁻⁴) x 6300

m = 1.1277 g of helium