Question

4. How many atoms of hydrogen
are
there in 36 gram
of NH
?​

Answer 1

Answer:

18 is the correct answer

Answer 2

The number of moles in 27.6g ammonia is 27.6 ÷ 17 = 1.62 mol. A mole is 6.02 × 10²³, so the number of hydrogen atoms in a 1.62 moles of ammonia is 1.62 × 6.02 × 10²³ × 3 = 2.93 × 10²⁴ atoms

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