Chemistry
Grade-9
Easy

Question

How many moles of Oxygen are present in 88gms of Carbon dioxide?

  1. 4
  2. 5
  3. 6
  4. 8

hintHint:

One mole of carbon dioxide has 2 moles of oxygen.

The correct answer is: 4


    One mole of carbon dioxide has 2 moles of oxygen.
    Molecular weight of carbon dioxide is 44g. Number of moles of carbon dioxide in 88gms is 2.
    For 2 moles of carbon dioxide it has 4 moles of oxygen.

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