If you dilute 12.5 mL of a 3.5 M solution to make 213.8 mL of solution, what is the molarity of the dilute solution?
M = 3.5M x (12.5/213.8) = ?
To find the molarity of the dilute solution, you can use the formula:
M1V1 = M2V2
where:
M1 = initial molarity of the solution
V1 = initial volume of the solution
M2 = final molarity of the solution (which we need to find)
V2 = final volume of the solution
In this case, the initial solution has a molarity of 3.5 M and a volume of 12.5 mL, and we are diluting it to a final volume of 213.8 mL. Let's plug these values into the formula:
(3.5 M)(12.5 mL) = M2(213.8 mL)
Now, solve for M2:
M2 = (3.5 M)(12.5 mL) / (213.8 mL)
M2 = 0.205847 M
Therefore, the molarity of the dilute solution is approximately 0.206 M.