Add 2 mL of culture to 20 mL of buffer. 2/20 = 1/10
62 50 + 10 + 1 + 1
I am assuming you mean how many ones make a 50. That is 1 times what is 50. We know that 1 times anything equals anything, so 1 times 50 is 50. So the scale would be 50.
HPUS is: The Homœopathic Pharmacopœia of the United States 2X means 1:100 dilution. In other words 1%. Normally homeopathic dilutions are much more. 12X or 600X.
67 50 + 10 + 5 + 1 + 1
10
Means that there is no dilution.
dilution rate RTU
(1 oz divided by 50) times 2 = .04 ounces
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.
It is a mixture of 1 part of the active ingredient (by volume) to 10 parts of the solvent.
Try a 50/50 dilution of acetone.
If you mean a 1/4 of 50 then it is 12.5
If you mean 1/5 of 50 then it is 10
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