How many atoms of H are present in 27.6 g of NH₃?

Name: How many atoms of H are present in 27.6 g of NH 3 ?
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Question

Quizplus · Accepted Answer

To find the number of hydrogen atoms in 27.6 g of NH3, first, calculate the number of moles of NH3 using its molar mass (17.03 g/mol for NH3 = 14.01 for N + 3*1.01 for H). Then, since each molecule of NH3 contains 3 hydrogen atoms, multiply the number of moles by Avogadro's number (6.022 x 10^23) and by 3. The calculation yields approximately 2.93 x 10^24 hydrogen atoms.

How Many Atoms of H Are Present in 27