What is the final dilution in each of the following:
a. 1/10 then 1/100 then 1/100
b. 1/100 then 1/10 then 1/10
c. 10^-1 then 10^-2 then 10^-1
d. 10^-3 then 10^-3
What is the final dilution in each of the following: a. 1/10 then 1/100 then 1/100...
What is the final dilution of a sample after 3 successive 1:10 dilutions and two 1:100 dilutions
What is the final dilution of a sample after 4 successive 1:10 dilutions? what is the dilution factor?
1. On a serial dilution with the following tubes set up, 1:2, 1:4, 1:8, 1:16, 1:32, and 1:64, there is no visible agglutination in the 1:64 tube. What is the titer of the antibody? A. 32 B. 16 C. 64 D. Cannot be determined 2. If you want to make 2 mL of a 1:20 dilution, how much serum would be needed? 3. When 1.0 mL of serum is added to 3.0 mL of diluent, what dilution does this represent?...
questions 2 and 3 please with work 1.1 point) In the image above, the final dilution is 1: 100,000,000 (10^8) 10 ml 100 90 m 9.0 ml 19 2. (1 point) in the image above, the final dilution is 1: 3. (1 point) What are two reasons serial dilution is a useful technique for counting populations of bacteria? Original
b. 1 ml 1ml 「-I Final dilution 4(1 point) This represents a serial dilution to determine viable bacterial counts. Indicate the final dilutions in each of the two tubes. Note that two different volumes of the cells intube #2 are plated onto agar plates A and B. Indicate the dilution factor that will be used to report the original cell concentration on a per mL basis. 1 ml 1 ml Final dilution in Tube #1 = Final dilution in Tube...
Draw (or describe) a dilution scheme for making the following bacteriophage titer plates: 1:100 (10-2), 1:1000 (10-3), and 1:10,000 (10-4) using a maximum of 2 dilution blanks. Show (or include in your description) all of the volumes including transfers, amounts in tubes and amounts plated.
1) if 5 parts sample is added to 10 parts diluents, what is the dilution that was just made? 2. What is the ratio if 5 parts sample volume is added to 10 parts diluents volume? 3. In a 1 to 3 dilution, what is the dilution FACTOR? 4. In a 1 to 10 dilution, what is the dilution FACTOR? 5. What is the dilution FACTOR if 40 mcL of sample added to 260 mcL of diluent? 6. What is...
3. A serial dilution of a swab sample was prepared by adding 10 uL to a volume of 990 ML water in tube 1, and 10 uL to a volume of 990 uL water in tube 2. a. What is the overall dilution and dilution factor of each tube? Overall Dilution Dilution Factor Tube 1 Tube 2 b. If 100 uL of tube 2 is spread plated and 126 colonies grow, what was the #cells/mL in the original sample?
You have three solutions, “A”, “B” and “C”. Each must be diluted by the following dilution factors: 4X, 10X and 50X respectively. What would be the final volume of a solution prepared by adding each of the ingredients to 100 mL of solvent?
You carry out a serial dilution of a bacterial culture, using dilutions of ⅕, ⅕, 1/100, and 1/10. Then you plate 100 µl of the final dilution and the next day observe 200 colonies on your plate. What was the concentration of the original culture? (5 pts)