How many atoms of hydrogen are there in 36 g of NH4 ?
class 9th
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Formula mass of ammonia = 14+1×3 = 17
The number of moles in 27.6g ammonia is 27.6÷17= 1.67 mole
A mole is 6.02×10^23 so the number of hydrogen atoms is 1.62 moles of ammonia is 1.62×6.02×10^23×3 = 2.93×10^24
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Answer:
The formula mass of ammonia is 14 + 1 3 = 17. The number of moles in 36 g ammonia is 36/ 17 = 2.11mol. A mole is 6.02 10, so the number of hydrogen atoms in a 2.11 moles of ammonia is 2.11 *6.02*10^23 = 1.27 *10^24 atoms .
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