nitrogen gas is define as N2. its moleculer mass will become 28. for its one mole it is of 28gram. according to mole concept in one mole there is 6.022*10^23 moles are present. so mass of 1 molecule of nitogen gas is 28/(6.022*10^23) gram. solve it and u will get answer.

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Actually mass of 1 atom of nitrogen is 14 u(u=atomic mass unit) mass of 1 mole=mass of 1 atom of nitrogen * Avagadro"s no. * 1.6 *10^ (-24)(since 1 amu=1.6* 10^(-24) gm) =14*6.022*10^(23)*1.6* 10^(-24) =14 gm


1 mole of Nitrogen has 28 g mass. As Nitrogen gas is made up of two Nitrogen elements Each nitrogen has Atmoic mass 14 g so N2 will have 2x14 = 28 g.

As we know that no. of moles = Given mass/molar mass also no. moles = no.of particles(atoms,molecules etc)/avogadro no.(No) as we know Avogadro"s number=6.023*10^23 so no. of moles=1/6.023*10^23 molar mass of nitrogen = 14*2=28 so no. of moles = mass/28 1/6.023*10^23=mass/28 mass=28/6.023*10^23...

Nitrogen always exists as a dimer so the mass of the molecular is to be calculated by multiplying atomic mass of nitrogen by 2 which means 14*2=28
Nitrogen molecular mass is 28 1mole of n2 is 28gram For 1molecule of nitrogen divide 28by avagadro number 6.022 10^23 So ans will be 28/6.022 10^23=4.64 10^-23
14 grams Mass = number of moles x molar mass 1 mole= Relative mass in grams of that particular element
mass of 1 mole=mass of 1 atom of nitrogen * Avagadro"s no. * 1.6 *10^ (-24)(since 1 amu=1.6* 10^(-24) gm) =14*6.022*10^(23)*1.6* 10^(-24) =14 gm
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