Number of moles present in 28g of nitrogen atoms are


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How many moles are present in 28g of nitrogen atoms?

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1 mole of Nitrogen is 14 grams 

No. of moles present in 28g will be  \frac{28}{14}=2 moles

since 1 mole of nitrogen contains 6.022* 10^{23} atoms

∴ 2 moles of Nitrogen have 6.022* 10^{23} *2 = 12.044* 10^{23} atoms

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