Question

3 litres of water are added to 2 litres of 5 M HCI. What is the molarity of HCl in the resultant solution?​

Answer 1

Answer:

2 M is the molarity of HCl in the resultant solution.

Explanation:

Initial volume of the 5 M HCl solution = $V_1=2L$

$M_1=5M$

Final volume of the new solution =$V_2=2L+3L = 5L$

Molarity of the new solution = $M_2$

$M_1\times V_1=M_2\times V_2$

$5 M\tiems 2 L=M_2\times 5L$

$M_2=2M$

2 M is the molarity of HCl in the resultant solution.