## Solution Dilution

by Lauren

(Chicago)

If 200 mL of an 11% solution is diluted to 1500 mL what is the strength of the solution?

**Reply **(by Keith)

Here's the set-up: (equation)

**(200mL)(.11%)+(1300mL)(.00%) = (1500mL)(X%)**

*Work out the math:*

(200mL)(.11%)+~~(1300mL)(.00%)~~ = (1500mL)(X%)

(200mL)(.11%) = (1500mL)(X%)

22 = 1500X

X = .0147

X = 1.5% (the solution is now 1.5%)