One mole of helium gas has a mass of
A)1.00 g.
B)2.00 g.
C)4.00 g.
D)3.00 g.
E)8.00 g.

Name: One mole of helium gas has a mass of A)1.00 g. B)2.00 g. C)4.00 g. D)3.00 g. E)8.00 g.
Brand: Quizplus
Rating: 5.0 (39 reviews)

Question

Quizplus · Accepted Answer

The atomic mass of helium is 4.00 amu (atomic mass units). One mole of any substance contains Avogadro's number of particles (6.022 x 10^23). Therefore, the molar mass of helium is 4.00 g/mol. Hence, one mole of helium gas has a mass of 4.00 g.

One Mole of Helium Gas Has a Mass of