Solveeit Logo

Question

Question: > The final molarity of a solution made by mixing 50 mL of \(0.5M\)HCl, 150 mL of \(0.25M\) HCl and ...

The final molarity of a solution made by mixing 50 mL of 0.5M0.5MHCl, 150 mL of 0.25M0.25M HCl and water to make the volume 250 mL is

A

0.50.5M

B

1 M

C

0.75M0.75M

D

0.25M0.25M

Answer

0.25M0.25M

Explanation

Solution

(4) : M1V1+M2V2=MVM_{1}V_{1} + M_{2}V_{2} = MV

0.5×50+0.25×150=M×2500.5 \times 50 + 0.25 \times 150 = M \times 250

M=25+37.5250=0.25M\frac{25 + 37.5}{250} = 0.25M