Q. 15 D5.0( 7 Votes )

Calculate the mas

Answer :

6.022 X 1023 number of N2 molecules.


As we know that 1 mole = 6.022 X 1023atoms


For 1 mole of N2 molecules:


First, we apply the formula:



Mass of N2 = No. of moles × Molar mass of N2


Mass of N2 = 1 mole × 2(atomic mass of nitrogen)


Mass of N2 = 1mole × 28u


Mass of N2 = 28g


Thus, mass of 6.022 × 1023 number of N2 molecules is 28g.


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