Explain how you would make a 1/1000 dilution of a bacterial suspension if you only had...
Explain how you would make a 1/1000 dilution of a bacterial suspension if you only had 3 ml aliquots of BHI broth (diluent) available.
What size pipetman will you need to use to make this dilution?
Homework Answers
Dilution factor = final volume / initial volume
Dilution factor = 1000
Final volume = ?
Initial volume = 1 ml (we will take 1 ml aliquot)
1000 = final volume / 1
Final volume = 1000 ml
Final volume = initial volume + volume of diluent
Volume of diluent = 1000 - 1 = 999 ml
Final solution of 1/1000 dilution will have 1 ml aliquot and 999 ml diluent.
We will use pipette of 100 ul to 1000 ul (1 ml). 999 ml we will measure by measuring cylinder.
Please rate high.
Add Answer to:
Explain how you would make a 1/1000 dilution of a bacterial
suspension if you only had...
1. You have a bacterial cell culture with a concentration of 1x109 cells/ml. You need to...
1. You have a bacterial cell culture with a concentration of 1x109 cells/ml. You need to dilute the cells to a concentration of 1x103. What is the correct ratio for this dilution? 2. You add 0.1 ml of a yeast culture to a test tube that contains 9.9 ml of buffer solution. What is the dilution factor of this mixture? 3. In a 1000 µl total dilution volume, the volume of cell culture used is 800 µl. What is the...
How would you make a 1:1000 dilution of E. coli?
How would you make a 1:1000 dilution of E. coli?
How would you priduce a 10^-1 dilution of a 3 mL bacterial sample using the entire...
How would you priduce a 10^-1 dilution of a 3 mL bacterial sample using the entire 3mL volume?
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The...
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The final volume should be 100mL. Which of the following outlines the correct way to make this dilution? For the other answer options, explain why they are incorrect. A. 10mL of patient sample added to 40mL of saline B. 10mL of patient sample added to 50mL of saline C. 20mL of patient sample added to 100mL of saline D. 20mL of patient sample added to...
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein....
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 4 Std 1 12 Std 2 6 Std...
Answer and do the following calculations: 1. Suppose your professor handed you a test tube with...
Answer and do the following calculations: 1. Suppose your professor handed you a test tube with 2.0 mL of an E. coli broth culture in it and told you to make a 10–2 dilution of the entire culture. Explain how you would do this. Show your calculations. 2. How would you produce a 10–1 dilution of a 3 mL bacterial sample using the entire 3 mL volume? 3. You have 0.05 mL of an undiluted culture at a concentration of...
Please show how to do these enumeration questions by showing the work. What is the dilution...
Please show how to do these enumeration questions by showing the work. What is the dilution factor if you add 625 µL of culture to 4.375 mL of dilution medium? You count the 10-3 dilution of a yeast suspension using the 1/25 mm2 boxes : you find 45 cells in box 1, 15 cells in box 2, 42 cells in box 3, 23 cells in box 4, and 26 cells in box 5. a) What is the original concentration of...
How would you prepare a 1/100 dilution (of a concentrated stock solution) in a final vol...
How would you prepare a 1/100 dilution (of a concentrated stock solution) in a final vol of 100 ml? 2.5 L? 87 ml? (ie how much diluent and how much of your concentrated stock)?
You have a stock solution that contains 24 mg/ml of protein. You want to make a...
You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml. You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 1 Std 2 Std 3 Std 4 concentration (mg/ml) 12 6 3...
Explain this example of the following water quality serial dilution. Note the dilution factors and how...
Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #;s from the incubated plates. A serial dilution yielded TBTC in the 1:1 plate and the 1:10 plate, 10 cfu’s in the 1:100 plate and 1 cfu’s in the 1:1000 plate. What is the concentration (CFU)/ml of the raw sample? Is water acceptable for portable or Recreational use? Explain. When do you use your filtration rather than serial dilution?
How would you make a 1:1000 dilution of E. coli?
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The final volume should be 100mL. Which of the following outlines the correct way to make this dilution? For the other answer options, explain why they are incorrect. A. 10mL of patient sample added to 40mL of saline B. 10mL of patient sample added to 50mL of saline C. 20mL of patient sample added to 100mL of saline D. 20mL of patient sample added to...
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 4 Std 1 12 Std 2 6 Std...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago