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You want to dilute a sample by 1/3. For a final volume of 27 ml, how much sample would you add to how much liquid media?
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- How much liquid media should you put in your dilution blank if you wanted to serially dilute a1 ml sample by a factor of 5?How many mL of 10 x stock solution would you need to make 118 mL of 1x PBS? Report your answer to 1 decimal place.What is the likely result if you try to use the 100X objective without immersion oil?
- A water sample contaminated with chloride ion, how can you estimate the sample purity?How would you perform a 100-fold dilution, if you want the final volume to be 15mL? What volume of sample and volume of dilute would be used?What volume of 50 ppm nitrate stock solution would you use to prepare 50 ml of 1ppm, 2 ppm, 3 ppm and 4 ppm nitrate solutions?
- Why is there a need to use acids and boil the sample in maceration?If skin cleaning solution is to be diluted 1 teaspoon to 64 ounces of water, how much water would need to be added to a container containing 1/4 teaspoon of skin cleaning solution?What are the mechanisms of samples separation work in Thin layer Chromatography? Please shortly write at your own words. Answer should be to the point (5-6 lines maximum).
- If I am making 500ml of a solution with 0.625ml ITS, 0.0035ml Linoleic acid, 20ml Nu-serum, 0.75g BSA, and DMEM:F12 as my solvent, how best would I make this solution and what tools would be the most accurate to use?How many mL of 19 mM SDS would you need to make 76 mL of 2 mM SDS? Report your answer rounded to 1 decimal place.In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials can be sterilized using either or both equipment below? List them down under the category: a) For “autoclaving” only, B) For Dry heat oven sterilization ,And C) Can be sterilized with either. Materials: 200-ml Erlenmeyer flask Stove 500-ml Erlenmeyer flask Autoclave 10-mL graduated cylinder Analytical balance 100-ml graduated cylinder pH meter Spatula Stirring rod 100-mL beaker Test tubes Distilled water Petri dish Stirring rod Alcohol lamp Glass dropper
