Question

How many atoms of hydrogen are there in 36 g of$NH_{4}$

Answer 1

Total number of moles of NH4 = $\frac{36}{14}$

= 2.57 moles

Number of atoms = moles x Avagadros number

= 2.57 x 6.023 x 10^23

= 15.47 x 10^23 atoms