Calculate the volume of .00500 M solution needed to make 10.00 ml of the following? .00400 M solution .00300 M solution
2 Answers
Explanation:
To solve these problems, we can use the dilution equation
where

#M# is the molarity of the concentrated (#"conc"# ) and dilute (#"dil"# ) solutions 
#V# is the volume of the concentrated and dilute solutions
The volume needed for the first concentration (
and the second concentration (
Molarity x Volume (concentrate) = Molarity x Volume (diluted)
(0.005M)Vol Conc = (10ml)(0.004M)
=> Vol Concentrate = [(10ml)(0.004M)/(0.005M)] = 8 ml
Mixing => Transfer 8 ml of 0.005M concentrate into mixing container and dilute up to but not to exceed 10 ml total volume=> 0.004M Soln
(0.005M)Vol Conc = (10ml)(0.003M)
=> Vol Concentrate = [(10ml)(0.003M)/(0.005M)] = 6 ml
Mixing => Transfer 6 ml of 0.005M concentrate into mixing container and dilute up to but not to exceed 10 ml total volume=> 0.003M Soln