Question

if 10^20 molecules are removed from 3.4 mg of NH3 then the number of moles of Nh3 left is​

Answer 1

Answer:

molecular mass for NH3= 14+3=17

10^20 molecules of NH3= 17×10^20/6.022×10^23

now u can find no of molecules

then subtract it from 3.4

then, find the mole

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