1.

Which has more atoms10 g of nitrogen (N2) or 10 g of ammonia (NH3,)

Answer»

Number of moles in 10 g of Nitrogen(N2) = 10g/28g/mol = 0.3571 mole = (0.3571mole x 6.022 x 10²³molecules/mole) = 2.15 x 1023molecules of N₂Number of moles in 10g of ammonia( NH3) = 10g/17g/mol = 0.5882 mole = (0.5882mole x 6.022 x 10²³molecules/mole) = 3.54 x 1023molecules of NH₃



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