Curren'S Math For Meds: Dosages & Sol
Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN: 9781305143531
Author: CURREN
Publisher: Cengage
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50 g of food is homogenized in 450 mL of water. From this, 1 mL is added to 29 mL of water, and then a 1:90 dilution is made from this, and then 1 mL from this is added to 99 mL of water, and then 100 uL of this last dilution is plated and after incubation 164 colonies are counted.
a) What was the overall dilution factor?
b) What was the total CFU/g of the original sample?

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