4.0 g of NaOH is dissolved in 100 mL solution. The normality of the solution is

Question

4.0 g of NaOH is dissolved in 100 mL solution. The normality of the solution is (A) 0.1 N (B) 0.5 N (C) 4.0 N (D) 1.0 N

Tardigrade Admin · Accepted Answer

Normality =( textgram equivalents of solute/ textvolume of solution in litre) Given, mass of solute =4 g Molecular mass of NaOH=23+16+1=40 Volume of solution =100 mL=100/1000 L =0.1 L ∴ Normality =(4/40/0.1)=1.0N

Q. $4.0 g$ of $N a O H$ is dissolved in $100 m L$ solution. The normality of the solution is

0.1 N

0.5 N

4.0 N

1.0 N

Normality $= \frac{gram equivalents of solute}{volume of solution in litre}$
Given, mass of solute $= 4 g$
Molecular mass of $N a O H = 23 + 16 + 1 = 40$
Volume of solution $= 100 m L = 100/1000 L$
$= 0.1 L$
$∴$ Normality $= \frac{4/40}{0.1} = 1.0 N$

Q. 4.0g of NaOH is dissolved in 100mL solution. The normality of the solution is