Question

The number of atoms of oxygen present in 0.2 moles of Na2Co3 will be
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Answer 1

Answer:

Explanation:

1 molecule of Na2CO3 contains 3 atoms of oxygen.

1mol of Na2CO3 contains of 3mol of oxygen atoms

So,

0.2 mol of Na2CO3 contains 0.6 mol of

oxygen atoms

So, no. of oxygen atoms

= 0.6× 6.022×10^23

= 37. 13 2×10^23