Question

Calculate the mass of $3.011\times {10}^{23}$ nitrogen molecule.

Answer 1

Number of molecule(M) =$3.011\times {10}^{23}$$mass=\frac{N}{N_A}M$
Mass(m) of $3.011\times {10}^{23}$nitrogen molecules=$=\frac{3.011\times {10}^{23}}{6.022\times {10}^{23}}\times 28=14g$