Best Answer

There are 6.02 x 1023 NH3 molecules in 1 mole of NH3.

Therefore 0.850mol of ammonia would have 0.85 x 6.02 x 1023 molecules of NH3.

In each NH3 molecule there are 4 atoms (one N and three H atoms).

Therefore the number of atoms in 0.850mol of NH3 is

4 x 0.85 x 6.02 x 1023 = 2.05 x 1024

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Q: How many atoms are there in 0.850 mol of ammonia?
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