What is the normality of 0.30 M H3PO4 (a tribasic acid) in the following reaction? H3PO4+2OH- xrightarrowHPO4--+2H2O

Question

What is the normality of 0.30 M H3PO4 (a tribasic acid) in the following reaction? H3PO4+2OH- xrightarrowHPO4--+2H2O  (A) 0.30 N (B) 0.60 N (C) 0.90 N (D) 0.15 N

Tardigrade Admin · Accepted Answer

In the given reaction, two hydrogen atoms are replaced. Hence, here, phosphoric acid is showing 2 basicity. ∴ Normality = molarity × basicity =0.30× 2=0.60 N

Q. What is the normality of 0.30 M $H_{3} P O_{4}$ (a tribasic acid) in the following reaction? $H_{3} P O_{4} + 2 O H^{-} H P O_{4}^{--} + 2 H_{2} O$

0.30 N

0.60 N

0.90 N

0.15 N

In the given reaction, two hydrogen atoms are replaced. Hence, here, phosphoric acid is showing 2 basicity. $∴$ Normality = molarity $\times$ basicity $= 0.30 \times 2 = 0.60 N$

Q. What is the normality of 0.30 M H3​PO4​ (a tribasic acid) in the following reaction? H3​PO4​+2OH−​HPO4−−​+2H2​O