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How much serum is present in 50 micrometers if the sample is diluted 1:5? 0.4 microliters...
A 1 to 5 dilution was performed on a serum sample. The diluted sample was analyzed for glucose and determined to be 100 mg/dL. What is the true/reportable value of glucose?
How many microliters of original sample are required to produce a final dilution of 10-3 in a total volume of 1,000 mL? • 1 microliter is 10-6 L or 10-3 mL. • The dilution is equal to M2/M1
A volume of serum sample is diluted with equal amounts of buffer (1:1). Following this, a series of five dilutions is made of this first dilution by diluting it 1/10, rediluting 1/10, and then three times more, each resulting solution then being a 1/10 dilution of the previous one in the series. What is the concentration of serum in each solution made (6 in total)?
8. A 50-g/L solution was diluted 1:5. This diluted sam ple was then diluted 1:10. What is the concentration of the final solution? a. 0.8 g/L b. 1 g/L c. 2.9 g/L d. 3.3 g/L 9. How much diluent is needed to prepare 300 mL of a 0.2-M working solution from a 0.8-M stock solution? a. 75 mL b. 225 ml c. 900 mL d. 1200 mL 10. What is the molarity of a solution containing 2 mol of sodium...
How many grams of vitamin B12 are present in a 200.0 mL blood serum sample with a vitamin B12 concentration of 187 ng/L?
1)How many microliters of original sample are required to produce a final dilution of 10-2 in a total volume of 5 mL? 1 microliter is 10-6 L or 10-3 mL. 2)A 0.00001 dilution is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is plated on solid media, and 197 colony forming units grow on the plate. How many bacteria are in a single mL of the original culture?...
Five milliliters of 5% alcohol are added to 5 mL of urine. Two milliliters of this solution is diluted to 50 mL with water, and 5 mL of this are used for analysis. How many milliliters of urine are in the analysis sample? You are doing a procedure that calls for 5 mL of undiluted urine. You use 3 mL of a 1/5 dilution of urine instead. The answer obtained is 50 mg/dL. What result should be reported? A procedure...
Microbiology Labs Practice Problems 1. You have 1 ml sample of a patient's serum and you need to make a 1:10 dilutions of it in saline. How much saline you would add to your sample to accomplish that? A. 10 ml B. 9 ml C. 9.9 ml D. 0.9 ml E. 0.99 ml 2. You have 0.5 ml sample of a patient's serum and you need to make a 1:10 dilutions of it in saline. How much saline you would...
Microbiology Labs Practice Problems 1. You have 1 ml sample of a patient's serum and you need to make a 1:10 dilutions of it in saline. How much saline you would add to your sample to accomplish that? A. 10 ml B. 9 ml C. 9.9 ml D. 0.9 ml E. 0.99 ml 2. You have 0.5 ml sample of a patient's serum and you need to make a 1:10 dilutions of it in saline. How much saline you would...
Q2 1 Point I want to pipette 87uL (microliters) of my sample. Which is the correct pipette to use? O P10 O P20 O P100 O P1000 Q3 1 Point If you were to dilute 30 uL of homogenate 1:5, how much water would you add to the sample (don't forget units)? Enter your answer here