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The avogadro number n .a is given by 6 .022 times 10 to the power 23.
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The significance of the avogadro number is that the avogadro number of any objects, that is 6 .022 times 10 to the power 23 objects make one mole of the object equals one mole of the object.
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Now say i have got a mole of computers, then i have got 6 .022 times 10 to the power 23 computers.
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Similarly, we go to the first question and we see that we are asked one mole of nitrogen.
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One mole of nitrogen which is written as n2.
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This is the nitrogen molecule.
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Now the number of molecules in one mole of nitrogen, the number of molecules, the number of molecules in 1 mole of nitrogen equals to 6 .022 times 10 to the power 23 molecules of nitrogen.
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Of nitrogen, i'll write it as n2.
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And then 1 mole of oxygen, 1 mole of o2, which is the oxygen molecule.
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Now this is also equals to 6 .022 times 10 to the power 23 molecules...