60 mL of (N/5) H 2 SO 4, 10 mL of (N/2) HNO 3 and 30 mL of (N/10) HCl are mixed together. The strength of the resulting mixture is

Question

60 mL of (N/5) H 2 SO 4, 10 mL of (N/2) HNO 3 and 30 mL of (N/10) HCl are mixed together. The strength of the resulting mixture is (A) 0.1 N (B) 0.2 N (C) 0.3 N (D) 0.4 N

Tardigrade Admin · Accepted Answer

Strength of resulting mixture, N =(N1 V1+N2 V2+N3 V3/V1+V2+V3) =(60 × (N/5)+10 × (N/2)+30 × (N/10)/60+10+30) =0.2 N

Q. $60 m L$ of $\frac{N}{5} H_{2} S O_{4}, 10 m L$ of $\frac{N}{2} H N O_{3}$ and $30 m L$ of $\frac{N}{10} H Cl$ are mixed together. The strength of the resulting mixture is

0.1 N

0.2 N

0.3 N

0.4 N

Strength of resulting mixture,
$N = \frac{N _{1} V _{1} + N _{2} V _{2} + N _{3} V _{3}}{V _{1} + V _{2} + V _{3}}$
$= \frac{60 \times \frac{N}{5} + 10 \times \frac{N}{2} + 30 \times \frac{N}{10}}{60 + 10 + 30}$
$= 0.2 N$

Q. 60mL of 5N​H2​SO4​,10mL of 2N​HNO3​ and 30mL of 10N​HCl are mixed together. The strength of the resulting mixture is