Question

You have a microtube containing 1 mL of a solution with `4.3 x 10^4` cells/mL and you are to produce a solution that contains 43 cells/mL. What dilutions must you perform?

Answer 1

You dilute the stuff `"1000-fold"`.

Explanation:

And thus take `1*mL` of the original sample, place it a `1*L` volumetric flask, and dilute to volume.....i.e.

`(1*mLxx4.3xx10^4*"cells"*mL^-1)/(1000*mL)=43*"cells"*mL^-1`.

Claro?