DATA $($WRITE DATA IN PEN ONLY$)$:

Part A: Roasting

mass of malachite $($g$)$: $0\mathrm{.}0872$

mass of CuO $($g$)$: $0\mathrm{.}0579$

use the data from part A$,$ calculate the $\%$m$/$m of copper in the malachite sample