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26 Jun 2019

1. You prepared a dilution 1 in 2 of trypsinized CHO-K1 cells. Then, you took an aliquot of the cell suspension and counted the cells using a hemocytometer. There were 75 cells in the 16 little squares. Please explain how to get each!

a. Calculate the concentration of the cells prior to the dilution. Show your calculations. Use scientific notation to express the result.

b. Now, you want to seed a 25cm2 flask with 750,000 cells. Calculate how many ml of the original cell suspension you will use

c. If the final volume of incubation is 4ml. How many ml of complete medium you will need to add?

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Tod Thiel
Tod ThielLv2
28 Jun 2019

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