Question

Calculate the number of mole in 140g of nitrogen gas and also find it volume at STP?(N=14)

Answer 1

Answer:

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Answer 2

Answer: no.of mole = 5

Volume at STP = 112 L

Explanation:

Formulas needed:- n = m/M [n = no. of mole] [m = given mass][M = molar mass]

Volume = n x 22.4L

Moles(n) = m/M

= 140/28

= 5

Volume = n x 22.4

= 5 x 22.4

= 112 L