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 0.5MHCl, 150 mL of 0.25M HCl and water to make the volume 250 mL is
A
0.5M
B
1 M
C
0.75M
D
0.25M
Answer
0.25M
Explanation
Solution
(4) : M1V1+M2V2=MV
0.5×50+0.25×150=M×250
M=25025+37.5=0.25M