0. Define and explain normality with mathematical expression.Calculate

1.	0. Define and explain normality with mathematical expression.Calculate the normality of 500 ml of solution containing5.3 gm of Na2CO3.
Answer» EXPLANATION: Molecular MASS of Na 2 CO 3 =106 gmol −1 ∴ NUMBER of MOLES = 106 53 =0.05mol As 0.05 mol are dissolved in 500mL; Number of moles dissolved in 1000mL (1L) or molarity of TH solution = 500 0.05 ×1000=0.1M.

0. Define and explain normality with mathematical expression.Calculate the normality of 500 ml of solution containing5.3 gm of Na2CO3.

Answer»

Molecular MASS of Na

=106 gmol

−1

106

=0.05mol

As 0.05 mol are dissolved in 500mL;

Number of moles dissolved in 1000mL (1L) or molarity of TH solution

500

0.05

×1000=0.1M.