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[" The number of atoms in "4.25" g of "N...

[" The number of atoms in "4.25" g of "NII_(3)" is approximately "],[qquad [" If "(" (c) ")/(" (a) ")1times10^(23)," (b) "2times10^(23)],[" (c) "4times10^(23)," AFMC "2010]]

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