Question

calculate number of mole of 2.4g of He​

Answer 1

Answer:

1 mole of Helium weighs 4 gram

So, X gram weighs 2.4 gram

X = 2.4/4

X = 0.6 moles.

Answer 2

2.4g of He

Answer:

Mass of He=2.4

Molar Mass of He=4g

Number of Moles=0.6 moles

Explanation:

(By dividing given mass and molar mass of He)