ratios

i think you are wrong on the first count, in a dilution ratio of 1:10m it would be 1/11 of the original concentration, there are 11 parts, 1 part solute and 10 parts solvent

a 1:1 ratio isnt 1/1, its 1/2 as there are two parts in total

i think.

"Turkeys killed my family" - Chip, 02/09/2005, 12:49