# Question: 1 a show how you would calculate the number density...

###### Question details

1.

a) Show how you would calculate the number density of boron-10
in natural (elemental) boron with elemental density, ρ
(g/cm^{3}). Use numbers for all terms except the
density.

mass (^{10}B) = 10.0129 amu
and mass (^{11}B) = 11.0093 amu

natural isotopic abundances are 19.9% ^{10}B and 80.1%
^{11}B

b) Show how you would calculate the number density of boron-10
in a mixture of boron (containing 19.9 weight % boron-10 and 80.1
weight % boron-11) with mixture density, ρ (g/cm^{3}). Use
numbers for all terms except the
density.