If an experiment calls for 0.9 ml of sterile saline solution solution, which pipette should you grab? Group of answer choices P20 P200 P1000

If an experiment calls for 0.1 ml for dilutions, which pipette would you use to ensure most accuracy? Group of answer choices P200 P20 P10000 P100 P1000

Match the following word pairs concerning the use of graduated and volumetric pipettes.Group of answer choicesThe volume level must be read in reverse (e.g. a liquid filled to 8.6 mL delivers 1.4 mL).The glassware can only deliver one exact volume.Requires pre-rinsing before useCare should be taken to avoid solution entering the pipette filler

Should you use a clean pipette tip for each sample?Group of answer choicesNo - we can't waste tipsYes - because changing tips is funNo - they are self-cleaningYes - to avoid contamination

Your solution is 10000 times more dilute than the original bacterial sample (ie 1x10-4). Your take 0.5ml of this solution and add it to 4.5ml saline. Once mixed, 0.5ml of that diluted cell suspension is placed in another tube with 4.5 ml of sterile saline. How many times is the original cell suspension diluted now? (Please type your numerical answer eg 1 or 10 or 100 or 1000 etc)

What is normal saline solution