The volume occupied by 1.4g of nitrogen at STP is
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"To find the moles of nitrogen, it is necessary to use the idea of molar volume
Mass of N2 = 1.4 g
Moles of N2 = 1.4g / 28g per mole = 0.05 moles
One mole of N2 at S.T.P has volume = 22.414 dm3
0.05 moles of N2 at S.T.P has volume = 22.414 × 0.05 = 1.12 dm3
"
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