0. Define and explain normality with mathematical expression. Calcul

1.	0. Define and explain normality with mathematical expression. Calculate the normality of 500 ml of solution containing5.3 gm of Na2CO3.
Answer» ong>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»

ong>Explanation:

Molecular mass of Na

=106 gmol

−1

∴ NUMBER of moles =

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.