Question

Calculate the no. of moles of 1.7g NH3.

Answer 1

Answer:

No. of moles = given mass / molar mass

Given mass = 1.7g

Molar mass of NH₃ = 14 + 3 = 17u

So,

No. of moles = 1.7 / 17

= 0.1 moles

∴ No. of moles in 1.7g of NH₃ = 0.1

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