How do you calculate the initial concentration of a sample? 2. Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you make this mistake. ~You add 9 ml of broth (water) to each tube. You add 1 ml of culture to the first tube and mix. You get distracted, and transfer 1ml of the dilutant (mixture of culture and broth) to the third tube instead of the second. You perform the rest of the series as described. High or LOW ?
How do you calculate the initial concentration of a sample? 2. Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you make this mistake. ~You add 9 ml of broth (water) to each tube. You add 1 ml of culture to the first tube and mix. You get distracted, and transfer 1ml of the dilutant (mixture of culture and broth) to the third tube instead of the second. You perform the rest of the series as described. High or LOW ?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. How do you calculate the initial concentration of a sample?
2. Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you make this mistake.
~You add 9 ml of broth (water) to each tube. You add 1 ml of culture to the first tube and mix. You get distracted, and transfer 1ml of the dilutant (mixture of culture and broth) to the third tube instead of the second. You perform the rest of the series as described.
High or LOW ?
Expert Solution
Step 1
The concentration of a sample is the number of moles of solute particles present in a liter of solution. Its standard unit is molarity (M). The initial concentration of a sample is the concentration prior to its dilution with appropriate diluent.
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