Jamestown Community College

1 part stock in a total of 100 parts. How you actually do the dilution is up to you. So a 1:100 is 1 l stock + 99 l solvent (say water in our case). It could also mean 2 l stock + 198 l solvent. How do you know that? 200/2 = 100. As shown below the arrows above we did 1 l + 99 l of solvent. A 1:50 means. 1 part in a total of 50 parts. ................
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