The mass of a given number of moles of substance is calculated using: \(mass~in~g = \textit{M}_{\textup{r}}\times~number~of~moles~or~mass =\textit{M}_{\textup{r ...

This video is about the mole, the unit of measurement for the number of particles in a substance. The mole is the unit for amount of substance. The number of particles in a substance can be found ...