1)list two additional factors that contribute to error in the pour plate method! 2) list two...
a) List two factors other than user error that would contribute to a yield greater than 100%. (2 marks) b) List two factors other than user error that would contribute to a yield lower than 100%. (2 marks) Context: a synthesis of aspirin lab, where we: "prepared a sample of aspirin, recrystallized the raw product, and determined the percentage yield of the aspirin based on the limiting reagent."
Question 1: The choice of research method depends on three factors: 1. List these factors [1 mark] 2. Choose two papers and describe these factors in each paper Question 2: Describe the three methods of sample selection and list the advantages and disadvantages of each method
2. Spread Plate Method What are the purposes of the spread plate method? Briefly explain the steps and the importance of diluting your original culture. I 3. Some critical thinking In a few sentences, explain the importance of isolation to microbiologists.
List 2 factors that influence temperature by warming our atmosphere and 2 additional factors that tend to cool the planet. Which factor is the largest cooling and warming factor?
Topic: Coronary Risk Factors, Part 1 List the risk factors that contribute to coronary artery disease (CAD). What connections can you draw between these risk factors and the number of patients suffering from cardiovascular disorders in this country? Would government regulation or community agencies help reduce CAD prevalence? Be sure to check back to see what others have said. You must comment on three posts with appropriate replies. Check out the discussion rubric on doc sharing
List at least 5 factors that contribute to rising health care costs in the US.
List and explain the factors that contribute to poor surface finish in machining operations. Hint: By the student. Recall, for example, in turning or milling, as the feed per tooth increases or as the tool radius decreases, the roughness increases. Other factors that contribute to poor surface finish are built-up edge, tool chipping or fracture, and chatter. By the student. Recall, for example, in turning or milling, as the feed per tooth increases or as the tool radius decreases, the...
2 Unit 1 The Fundamentals ADDITIONAL QUESTIONS 1 a. What is the advantage of a spread plate count over a simple hemocytometer count? b. Given your answer to (al, why would you do a hemocytometer count that is what is the advantage of this method over spread plating? 2. Why are counts expressed in CFU per milliliter instead of cells per milliliter? 3. If you want a final cell density in CFU per 10 ml, why do you apply only...
2 List 7 factors that affect effectiveness of a disinfectant 3. List 5 factors that influence the size of the zone of inhibition on the antibiotic disk plate.
Ques Question 5 134 points Sant An When examining a petri-dish after performing the pour-plate method using aerobic and anerobic bacteria, we expect that there might be some visible colonies embedded in the agar. True False