One litre of 0.15M HCL and one litre of 0.3M HCL is given. What is the maximum volume of 0.2M HCL which one can make from these solution. No water is added. No

Question

One litre of 0.15M HCL and one litre of 0.3M HCL is given. What is the maximum volume of 0.2M HCL which one can make from these solution. No water is added.

Note that M represent Molarity of solution.

Answer 1

Let V = volume of final mixture which makes 0.2M HCl.

V*0.2 = 1*0.15 + (V-1)*0.3

0.2V = 0.15 +0.3V -0.3

0.2V = -0.15 + 0.3V

-0.1V = -0.15

V = 1.5 liters of 0.2M HCl

Notice that chloride is Cl, not CL.