Question

what volume, in milliliters, of 2.00 m calcium chloride stock solution would you use to make 0.50 l of 0.300m of calcium chloride solution?

Answer 1

we can use the following formula when making diluted solutions from more concentrated solutions.

c1v1 = c2v2

where c1 is the concentration and v1 is the volume of the concentrated solution

and c2 is concentration and v2 is volume of the diluted solution to be prepared

substituting these values in the equation

2.0 M x V = 0.300 M x 500 mL

V = 75 mL

75 mL should be taken from the stock solution and diluted upto 500 mL to make the 0.300 M solution