Ca(ClO3)2
a) Ca:Cl:O= 1:2:6
b) Ca:Cl:O = 40g:2x35.5g:3x2x16g = 40:71:96
c) M Ca(ClO3)2= A Ca + 2 x A Cl + 3x2x A O = 40 + 2 x 35.5 + 3x2x16 = 207 g/mol
d)
207 g clorat ... 40 g Ca ... 2 x 35.5 g Cl ... 2x3x16 g O
100 g clorat .......a Ca ...........b Cl ................c O
a= 100 x 40 / 207 = 19.3 % Ca
b= 100 x 2 x 35.5 /207 = 34.3 % Cl
c= 100 x 3 x 2 x 16 / 207 = 46.4 % O
