If you had a cell suspension of 2.5 x 10^4 cells/mL and plated 100uL into each well (4 wells), how many cells were added per well?

To make 500ml of 1xBuffer, measure __ML of 20x stock and add _­__mL water to make the total volume _­__mL. 1:__ Dilution

You plated 0.1 ml of a sample of kombucha diluted by a factor of 10^-3. It produced 43 colonies. What was the original concentration in the sample? Show your calculations.

How many cells would you be plating if you pipetted 200uL into your dish from a 125 x 104 cells/mL cells suspension?

The culture you are working has a doubling time of 2 hours and a cell density of 3 x 106 cells per mL. For your experiment, you first dilute the culture 100 fold. Assuming that there is no lab phase and that the cells remain in exponential growth the entire time, what is the cell density (cells/mL) after 10 hours?

A sample is diluted by a factor of 10 five times. The 10^-3 dilution has 272 colonies on it. Assuming you plated the same volume on each plate, how many colonies would you expect to find on the 10^-2 plate? Include units and use OCD formula.

If 2.4 vial Conatins 100 units of Botox and 0.2 ml is injected into 3 sites during surgery how many units will remain in the vial

Design a serial dilution of a 25-gram cheese sample to achieve a final dilution of 10-5 using 90 ml blanks. Show how you would plate out 102 through to 10-6

You will make 5 dilutions in separate tubes each diluted 1 into 3 in water from the previous tube. Your first tube should be a 1 into 2 dilution from your 100% stock. Each tube should have final volume of 500uL.

If the field diameter is 2.4 mm and there are 16 cells across the field of view when using the 40X objective, what is the true length of one cell in millimeters (mm)?