Calculations involving masses

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate, $Al2(SO4)3\text{Al}_2(\text{SO}_4)_3$ .

Relative atomic masses ( $A_r$ ): $Al=27\text{Al} = 27$ , $S=32\text{S} = 32$ , $O=16\text{O} = 16$ .

[2]

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate, $Al2(SO4)3\text{Al}_2(\text{SO}_4)_3$ .

Relative atomic masses ( $A_r$ ): $Al=27\text{Al} = 27$ , $S=32\text{S} = 32$ , $O=16\text{O} = 16$ .

[2]

Calculations involving masses Questions