Question

3.49 of ammonia at stp occupies volume of 4.48 dm3 calculate molar mass of ammonia

Answer 1

volume = 4.48 dm3 = 4.48 L

gram molecular mass = 22.4 L at STP

so, 4.48 L of ammonia gas weighs= 3.49 g

22.4 L of ammonia weighs = 22.4 x 3.49 /4.48

= 17.45 g

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