Calculations involving masses

Calculate the relative formula mass ( $M_r$ ) of iron(III) oxide, $Fe2O3\text{Fe}_2\text{O}_3$ .

(Relative atomic masses, $A_r$ : $O=16\text{O} = 16$ , $Fe=56\text{Fe} = 56$ )

[2]

Calculate the relative formula mass ( $M_r$ ) of iron(III) oxide, $Fe2O3\text{Fe}_2\text{O}_3$ .

(Relative atomic masses, $A_r$ : $O=16\text{O} = 16$ , $Fe=56\text{Fe} = 56$ )

[2]

Calculations involving masses Questions