How many moles of dioxygen are present in 64g of dioxygen? (Molecular mass of
dioxygen is 32
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Answer:
1 mole = 6.023 x 1023 atoms (or)
= mass / Molar mass in gms
The no. of moles in 64 gms of dioxygen are
= 64 / 32
= 2
1 mole of dioxygen contains 6.023 x 1023
2 moles contains = 6.023 x 1023 x 2
= 12.046 x 10 23
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