Question

calculate the number of moles in 52 g of helium

Answer 1

atomic mass of helium is 4
so one mole of helium is 4g
then 52 grams of helium=52/4
=13 mol

Answer 2

4 gm helium is of 1 atom
8 gm helium should be 1 mole
52 gm helium should be ⅛ × 52 = 6.5 moles _ans_

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