Municipal water treatment facilities often utilize chemical coagulants to aggregate suspended impurities, allowing them to be easily filtered out. A widely used coagulant for this purification process is aluminium sulfate, $Al2(SO4)3\text{Al}_2(\text{SO}_4)_3$ .

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate.

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

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate.

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

Calculations involving masses

Question 78

Markscheme

Calculations involving masses

Question 78

Markscheme

Calculations involving masses

Question 78

Calculations involving masses Questions

Calculations involving masses

Question 78

Calculations involving masses Questions