Themolecular mass of a salt of oxyacid of chlorine of a divalent metal, which contains more number of oxygen atoms than its corresponding -ic' acid is 239. What will be themolecular masses of its (a) phosphate(b) iodide (c ) bisulphate be?

Themolecular mass of a salt of oxyacid of chlorine of a divalent metal

1.	Themolecular mass of a salt of oxyacid of chlorine of a divalent metal, which contains more number of oxygen atoms than its corresponding -ic' acid is 239. What will be themolecular masses of its (a) phosphate(b) iodide (c ) bisulphate be?
Answer» Solution :The formula of perchlorate of a divalent METAL M is `M(ClO_(4))_(2)`. Molecular mass of `M(ClO_(4))_(2) ` is 239. Let X be the ATOMIC mass ofbivalent metal. `:. X + 2[35.5 + 64] = 239 rArrx = 40` `:.` The element is calcium. (a) The formula of its phosphate is `Ca_(3)(PO_(4))_(2)`. `:.` Its molecular mass is `(3 xx 40)+2[31+64] = 310` (b) The formula of its iodide is `CaI_(2)`. `:.` Its molecular mass is `40+(2 xx 127) = 294` (c ) The formulaof bisulphate is `Ca(HSO_(4))_(2)` `:.` Its molecular mass is ` 40 +2[1+32+64] = 234`