Calculate the number of moles present in: 3.011 X 10^23 number of oxygen atoms. 60 g of calcium

CBSE Class 9 CBSE Class 9 Science
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Calculate the number of moles present in:

  1. 3.011 X 10^23 number of oxygen atoms.
  2. 60 g of calcium

[Given that atomic mass of Ca = 40 u, Avogadro No. = 6.022 X 10^23]

Answer:

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