Calculate the number of molecules in 52 gram of helium

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.

Explanation:

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