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Kels
Kels Asked:

How many molecules (not moles) of NH3 are produced from 1.97×10?4 g of H2 ?

How many molecules (not moles) of  NH3 are produced from 1.97×10?4 g of H2 ? 

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joep
joep Answered:

This question is incomplete. The source of the nitrogen is not given and this will affect the answer.

Assuming that one starts with molecular nitrogen, the following equation holds:

0.5N2 + 3H2 = NH3

The number of grams of hydrogen is equivalent to 10,000 moles which means that

about 3300 moles of NH3 will be formed.

Multiplying 3300 by Avogadros number(the number of molecules in a mole) gives

about 2x10?27 molecules of NH3.

Avogadros number =6.02X10?23. The questioner can figure out the exact number of molecuoles of NH3 if he or she wishes.

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