Question

Normality and molarity changes with temperature because they involve volumes. The normality of $0.3$ M phosphoric acid $H_{2}P{O}_4$ is:

• A. $0.9$
• B. $0.1$
• C. $0.3$
• D. $0.6$

Answer 1

Answer: (D)

$0.6$

Normality of $0.3M$ $H_2{PO}_4$ is

n-factor of $H_2{PO}_4=2$

Normality=Molarityxn-factor

=$0.3$x$2=0.6$

The normality of $0.3M$ $H_2{PO}_4$ is $0.6N$