Question

Approximately how many nucleons are there in a 1 kg object

Answer 1

Mass of object μ = 1 kg

Mass of neutron $m_n = 1.67493 \times 10^{-27} \;kg$

Since the mass of nucleon = mass of neutron ≈ mass of proton

The number of nucleons

$n = \frac{μ}{m_n} \\ n = \frac{1}{1.67493 \times 10^{-27}} \\ n = 5.97 \times 10^{26}$