A water quality control board reports that water is unsafe for drinking if the proportion of nitrate concentration exceeds 21% ppm. Water specimens are taken from a well.
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A water quality control board reports that water is unsafe for drinking if the proportion of nitrate concentration exceeds 21% ppm. Water specimens are taken from a well.
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- Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 10 cfu’s in the 1:100 plate and 1 cfu’s in the 1:1000 plate . What is the concentration (CFU)/ml of the raw sample?Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 50 cfu’s in the 1:100 plate and 3 cfu’s in the 1:1000 plate . What is the concentration (CFU)/ml of the raw sample? Is water acceptable for potable or Recreational use? Explain. When do you use filtration rather than serial dilutionWhich of the following can most likely increase the yield of recrystallized benzoic acid? CHOICES: A fluted filter paper was used during cold filtration. The receiving flask from hot filtration does not contain a small amount of solvent. Activated charcoal was not added to the solution. The solution was filtered immediately after hot filtration.
- What is biochemical oxygen demand (BOD) test? At what stage of Sewage treatment this test is performed? BOD level of three samples of water labelled as A, B and C are 30 mg/L, 10mg/L and 500 mg/L respectively. Which sample of water is most polluted?Is it safe to use 100g of Lye (NaOH) as a disinfectant at homes? Justify your claim by computing the percent composition. Claim: Yes/No Solution:Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 10 cfu’s in the 1:100 plate and 1 cfu’s in the 1:1000 plate .
- What pH value listed is the most reasonable for a yogurt sample? 04 8 10 01The steps to convert chaulmoogra oil into an injectable treatment are: I. extraction II. saponification III. hydration IV. acidification V. esterificationIn each picture, mark a plus + where the water concentration is higher, and a minus - where it is lower.
- What is the minimal concentration (MIC) for disinfectant number 1? Just write the corresponding number including the decimal as written. ug/mL. Disinfectant 1 2 3 4 concentration 0.1 ug/mL +++ ++++ ++ +++ 0.2 ug/mL ++ ++ + ++ 0.5 ug/mL + + 1.0 ug/mL 5.0 ug/mL subculture 1 2 3 4 0.1 ug/mL ++++ ++++ ++++ ++++ 0.2 ug/mL ++++ ++++ ++++ ++++ 0.5 ug/mL ++++ ++++ ++++ 1.0 ug/mL ++++ 5.0 ug/mL Submit responsea) Define 'Disinfection' and 'Sterilization' OR differentiate between them. b) Enlist the different methods of 'Disinfection' which method would you recommend for 'Municipal Water Supply' and WHY? Depending on the availability of 'Source of Water which 'Source' is more important than the other for disinfection and WHY? Give reason. c) of them is stronger than the other and by what percentage? Define or differentiate between “Free Available Chlorine" and “Combined Available Chlorine". Write their Chemical Formulae and mention which one d) Define “Break Point Chlorination". With the help of a neat Figure' show the "Break Point" and also show "Combined Available Chlorine", "Free Available Chlorine" and "Total Available Chlorine". Mention the “Dosage" in order to obtain a “Free Available Chlorine Residual" of about 0.5 mg/l or above. e) Define the term “Chlorine Demand" of water. What are the "Factors" OR enlist the "Factors" that show the "Effectiveness of Chlorine".You are asked to make 10 mL of buffer from a 5X concentrate. invitrogen KP 0reen CR Te reorder visit themotshor.com For suppot visit mhe.com/suppot How many mL of concentrate do you require before diluting to a final volume of 10 mL with DDW?