How many molecules of NH3 are produced from 8.50x10^-4 g of H2

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Chemistry

How many molecules of NH3 are produced from 8.50x10^-4 g ofH2

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4.3 Ratings (688 Votes)

Â Â Â no of moles of H2 = W/G.A.Wt

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 8.5*10^-4/2Â Â = 4.25*10^-4

N2 + 3H2 ----------------> 2NH3

Â Â Â Â Â Â Â Â 3 moles of H2 react with N2 to from 2 moles of NH3

Â Â Â Â Â Â Â 4.25*10^-4 moles of H2 react with N2 to form =2*4.25*10^-4/3

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 2.83*10^-4 moles of NH3

no of molecules = no of moles* 6.023*10²³

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 2.83*10^-4 * 6.023*10²³

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 1.704*10²⁰ molecules

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