Mass of 11.2 L of NH3 gas at STP is
A. 0.5 g
B. 4.5 g
C. 6.75 g
D. 8.5 g
Answers
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Its answer is d) 8.5 gm.
As, 1 Mole of NH3 at STP occupies volume of 22.4 l
I Mole of NH3 weighs = Molar mass =17g
So 17g of NH3 = 22.4l
Let X g of NH3 = 11.2l
Therefore, X = (11.2 x17)/(22.4)
=8.5g
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