Question

$50 \,mL$ of $10 \,N H_2SO_4, 25 \,mL$ of $12 \,N \,HCI$ and $40\, mL$ of $5N \,HNO_3$ are mixed and the volume of the mixture is made $1000\, mL$ by adding water. The normality of resulting solution will be

• A. 1 N
• B. 2 N
• C. 3 N
• D. 4 N

Answer 1

Answer: (A)

1 N

Answer 2

0.5 M $H_2SO_4$ = 1 N $H_2SO_4$ {\underset{\mathrm{(conc)}}{ {N_1V_1}}$=$\underset{\mathrm{(dil)}}{ {N_2V_2}}} 1 N $\times$ 1 L = $N_2 \times$ 10 L $N_2$ = 1/10 N = 0.1 N.