Question

A helium balloon contains 0.42 gram of helium. How many moles of helium are there in the balloon

Answer 1

Answer:

0.105 moles

Explanation:

No of moles= given mass / molar mass

=0.42/4

= 0.105 moles

Hope it helps you!!!

Answer 2

$\huge \tt0.105 \: \: moles$