from a viable plate count you obtained the following results after diluting a bacterial sample and plating 0.20 mls of the dilutions on various media: how many cfu/ml were in the original sample?



Answer :

The original sample is 2 ml. So after dilution it is 0.2 ml.

What is dilution?

An object that dissolves in a solvent is referred to as a solute. A solvent is something that allows a solute to dissolve and form a solution.

Typically, a liquid is a solvent, while a solid is a solute. Solutions are uniformly constituted or homogenous mixtures.

When compared to a diluted solution, a concentrated solution has a substantial amount of solute dissolved into it. A diluent is something we employ to thin out a solution. A serial dilution is a different kind of dilution. When we continually diluted a stock, we experienced the second sort of dilution.

Therefore, The original sample is 2 ml. So after dilution it is 0.2 ml.

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