Question

the mass of ammonia is 2.125 g find its volume at s.t.p

Answer 1

3.49g of ammonia at stp accupies volume of 4.48 dm3 calculate molar mass of ammonia - 6410210.

Answer 2

$\huge\pink{Assalamualykum}$

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$\huge\red{Given:-}$

Mass of NH3 = 2.125g

Molar mass of NH3 = 14+1×3=17 g/mol

$\huge\pink{Required:-}$

Volume of ammonia at STP =?

$\huge\green{Solution :-}$

Moles of ammonia =mass / molar mass

Moles of ammonia =2.125 / 17

Moles of ammonia = 0.125mol

NOW ..........

Moles of ammoina = Volume in litre or dm3 / Volume at STP

Volume of ammonia = Moles of ammonia × Volume at STP

Volume of NH3 = 0.125 × 6.023 ×10^23

Volume of NH3 = 0.75×10^23litre

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