answersLogoWhite

0


Best Answer

Helium exists as a monatomic noble gas. Its Atomic Mass is 4.0 as can be obtained from the Periodic Table. The amount of helium in a 205g pure sample is given by 205/4.0 which equates to roughly 51 moles.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many moles does 205 g of helium contain?
Write your answer...
Submit
Still have questions?
magnify glass
imp