Which of the statement are true?

Options

A. The equivalent weight of `Ca_(3)(PO_(4))_(2)` is `Mw//6`.
B. The equivalent weight of `Na_(3)PO_(4).12H_(2)O` is `Mw//3`.
C. The equivalent weight of `K_(2) SO_(4)` is `Mw//2`.
D. The equivalent weight of potas alum `K_(2)SO_(4)Al_(2)(SO_(4))_(3).24H_(2) O` is `Mw//8`

Answer

A, B, C, D

Explanation

a. Valency factor `= 6 [overset(+ 2 xx 3)(Ca_(3)) overset(-3 xx 2)((PO_(4))_(2))]`
b. Valency factor `= 3 [overset(+1 xx 3)(Na_(3)) overset(-3)((PO_(4)))]`
c. Valency factor `= 2 [overset(+1 xx 2)(K_(2)) overset(-2)(SO_(4))]`
d. Valency factor `= 8 [overset(+ 1 xx 2)(K_(2)) overset(-2)(SO_(4)) overset(+3 xx 2)(Al_(2)) overset(-2 xx 3)((SO_(4)))]`