Question

calculate the number of moles in 4.5g of NH^3​

Answer 1

Answer:

4.5 grams of NH3 is [1/17 x 4.5] moles of NH3 , 0.2647 or 0.265 moles of NH3.

Explanation:

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Answer 2

Moles= Given Mass/ Molecular Mass

Given Mass= 4.5g

Molecular Mass of NH3= 14+ 3×1 = 17u

Moles= 4.5/17= 0.264 moles