Question

How many atoms of hydrogen are there in 36gram of NH4

Answer 1

2.93×10 raise to power 24

Answer 2

Explanation:

The formula mass of ammonia is 14 + 1 × 3 = 17. 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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