Want this question answered?
100
In chemistry and biology, the dilution factor is the total number of unit volumes in which the material is dissolved. As I understand it, the dilution refers to the dilution ratio. If you add 1 part of something to 4 parts of something else, the dilution ratio is 1 to 4. The dilution factor counts all the parts and expresses the same thing as 1 out of 5.
A dilution ratio is normally used for a mixture of two fluids: an active component and a carrier solvent. The dilution ratio is the ratio of the volume of the solvent to the volume of the active component.
-1600
You add 9.09ml of stock solution to a volumetric and make it up to 1 litre to get a 110 dilution
1:2 dilutions
Concentration factor, CF = 1/Dilution factor, DF if DF = 5 then CF = 1/5 CF = 0.2
1:2 means "1 part to 2 parts", so if the "1 part" is what you are diluting, it is actually a 1/3 dilution (one part into 3 parts total). On the other hand, 1/2 means "1 part into 2 parts total", and in the colon nomenclature that would be a 1:1 dilution.
1-1.5%
You calculate 0.05 percent of the volume of the base liquid, then add that amount of whatever you want to dilute in this quantity.
32
50% = 1/2 so half of 4000 is 2000