9. If there are 35 colonies on a plate and you generated a dilution factor of 10
ID: 255887 • Letter: 9
Question
9. If there are 35 colonies on a plate and you generated a dilution factor of 10A-7 then plated 100 microliters, what was the starting concentration? 10. A pre-made dilution of 1 0^-2 was given to you. You pipetted 100 ??of that solution into a 9.9 mL saline tube, then plated 100 microliters, what would be your final dilution? 11. There are 45 colonies on your plate and the final dilution factor was 104-7, what was the starting concentration? 12. A pre-made dilution of 10^-2 was given to you. You pipetted 100 ?L of that solution into a 9.9 mL saline tube, then pipetted 1 milliliter of that into a 9.0 mL saline tube, and plated 100 microliters of that solution. What would be your final dilution factor?Explanation / Answer
Answer:
9)
Based on the given information:
10)
11)
12)
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