Question

I) Formula- CH4
Number of particles- 2.408 x 10^24
Number of Moles- ?
Mass- ?

ii) Formula- He
Number of particles- ?
Number of Moles- 5
Mass- ?

Pls answer the '?'

Answer 1

Answer:

CH4

Number of moles =1 mole is to moles of CH4 or 16.04246 grams

mass=16.04g/mole

He

number of particles=22

Mass=4.002602