By pairing up the source solutions, you can find out
the proportions for as many sources as you need.


You pair up sources as follows:

  1. Pair up a source with a concentration greater than the required concentration with a source with a concentration less than the required concentration
  2. Continue to pair up the source solutions until all source solutions have been paired. This may involve you using the same source solution more than once

However, because different people will pair up the source solutions differently, there can be more than one set of proportions which will result in the required concentration. Look at the example on the next screen.