Answer: The number of hydrogen atoms in a given chemical formula are \(7.2264\times 10^{24}\)
Explanation:
We are given a chemical compound having chemical formula of \(NH_3\)
In 1 mole of ammonia, 1 mole of nitrogen atom and 4 moles of hydrogen atoms are there.
According to mole concept:
1 mole of a compound contains \(6.022\times 10^{23}\) number of atoms.
So, 3 moles of ammonia will contain = \(3\times 4\times 6.022\times 10^{23}=7.2264\times 10^{24}\) number of Hydrogen atoms and \(3\times 1\times 6.022\times 10^{23}=1.8066\times 10^{24}\) number of nitrogen atoms.
Hence, the number of hydrogen atoms in a given chemical formula are \(7.2264\times 10^{24}\)
