Calculate the number of atoms in 52 gram of helium

Asked by admin @ 04/08/2021 in Chemistry viewed by 299 People

Calculate number of atoms in 52g of Helium

Answered by admin @ 04/08/2021

The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g.

Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He

1 g of He = (6.022 X 1023) / 4 atoms of He

52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He

= 7.829 X 1024 atoms of He

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