In the reaction Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O, the equivalent mass of H2O is: (M molecular mass)

Question

In the reaction Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O, the equivalent mass of H2O is: (M molecular mass) (A) M (B) M /2 (C) M/3 (D) M/6

Tardigrade Admin · Accepted Answer

In acid-base neutralisation 1 H+ combines with 1 OH- to produce 1 H2O, therefore its equivalent mass = molecular mass

Q. In the reaction $C a (O H)_{2} + H_{3} P O_{4} \to C a_{3} (P O_{4})_{2} + H_{2} O$ , the equivalent mass of $H_{2} O$ is: ( $M$ molecular mass)