From a 5% normal saline (NaCl) solution, take 2 ml and dilute it 1:5. Take 5 ml of this solution and dilute it 1:10. A 2:100 dilution is made from this last solution. Determine: a) How many times less concentrated is the 2nd dilution than the original? b) What is the dilution factor in each step of the series and what is the final volume of each dilution? c) How many grams of NaCl will be in 1 ml of the last solution?

Janice adds 1 mL of bacteria to a tube containing 2 mLs of nutrient broth and then adds an amount of a certain 50% stock disinfectant. The total volume of this tube is 5000 µL. what is the C1V1=C2V2 values for this equation?

If you transferred 15 mL of an undiluted sample into 35 mL of diluting fluid, what dilution have you created? (Note: provide your answer in decimal format to three decimal places.)

Bicillin CR is given IM. There are 600,000 units/mL in each syringe and the dose is 1.5 million units (1,500,000 units). What volume is to be administered?

List the mechanism and give several names of the following: Class I, Class II, Class III, and Class IV antiarrythmics.

A cell count was performed on a serous fluid specimen.  As the fluid was cloudy, a 1:5 dilution was prepared.  The counts were: 34 and 32; 5 squares on each side were counted.  What is the average cell count per L?  Side 1:  34 x 1 x (1/(5x0.1)) x 5 = 340 per µl Side 2:  32 x 1 x (1/(5x0.1)) x 5= 320 per µl

what is the most efficient way to solve this dilution word problem?

I want clear handwritten solution only....i will up vote

(e) Complete the following table: Number printed on the micropipette's end (its plunger) 20 20 200 1000 1000 Number showing in the micropipette's display window OTOHOSHOSHOOO 0 7 0 1 0 5 1 0 5 1 0 0 0 2 1 Volume that the micropipette is set to draw up (include units in your answer) 6) Before using a micropipette, you have to first place a 7) Shown below are the steps required to transfer fluid from one tube to another using a micropipette. Write numbers in the blanks to indicate the correct order in which the steps should be performed. Slowly release the micropipette's plunger. Place the micropipette tip into the tube containing fluid you wish to draw up. Push down on the micropipette plunger until it reaches the second stop. Place the micropipette tip into the tube that you wish to expel fluid into. Push down on the micropipette plunger until it reaches the first stop. 8) Suppose that you're getting ready to draw fluid into a micropipette. To do so, you push the micropipette's plunger…

How do I calculate beers law? For serial dilutions. I want to look the concentration values from these absorbance readings in order to make a graph of conc vs absorbance. (Assume the first tube has a 1 unit/ml concentration) 1)1.180 2)0.513 3)0.107 4)0.019 5)0.003