Homework Answers
1) The Series dilution will require the concentration of the solution to be measured only once at the time of starting of experiment. The next concentration value will be dependent on the previous one. Because of this reason, the absolute concentration time will become smaller and smaller with the drop in concentration
2) The series of dilution will be using the same constant dilution factor. But, if the equipment is faulty, then the same factor will be getting multiplied again and again in order to achieve overall dilution. This will lead to higher concentration errors than the actual value.
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1. Describe how serial dilutions can be a more accurate form of preparing dilute solutions. 2....
Pre-lab L07 Solutions, Concentration and Dilutions (10pts) Name 1. How do you determine the polarity of...
Pre-lab L07 Solutions, Concentration and Dilutions (10pts) Name 1. How do you determine the polarity of a compound? 2. How do you predict the solubility of a compound based on its polarity? 3. What is the mass/mass percent concentration of a solution? (Describe in detail or write and equation.) 4. What is the mass/volume percent concentration of a solution? (Describe in detail or write and equation) 5. What is the molarity concentration of a solution? (Describe in detail or write...
Dilution is a process in which the concentration of a solution is lowered by adding more...
Dilution is a process in which the concentration of a solution is lowered by adding more solvent. Some of the reasons dilutions are performed are to minimize measurement errors when preparing a series of solutions at different concentrations, to save time and laboratory space, and to make more accurate measurements on an analytical balance when the target concentration is very low. The new concentration of a diluted solution can be determined from the following equation, sometimes called the dilution equation,...
Grading: 2 points for each if complete and accurate; 1 point if needs more work and...
Grading: 2 points for each if complete and accurate; 1 point if needs more work and O points if not done Directions: Answer the following using your textbook as a resource. 1. Describe fundamental principles for evacuation of a healthcare setting. 2. Describe fire safety issues in an ambulatory healthcare environment. (How can fires be avoided? What should be available in case of a fire and what should you do when there is a fire?) 3. Describe PASS
1. On a serial dilution with the following tubes set up, 1:2, 1:4, 1:8, 1:16, 1:32,...
1. On a serial dilution with the following tubes set up, 1:2, 1:4, 1:8, 1:16, 1:32, and 1:64, there is no visible agglutination in the 1:64 tube. What is the titer of the antibody? A. 32 B. 16 C. 64 D. Cannot be determined 2. If you want to make 2 mL of a 1:20 dilution, how much serum would be needed? 3. When 1.0 mL of serum is added to 3.0 mL of diluent, what dilution does this represent?...
This lab illustrates how supersaturated solutions are prepared, and the process of crystallization. This lab can...
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please help with whatever possible. thank you so much in advance. Name One use of serial...
please help with whatever possible. thank you so much in
advance.
Name One use of serial dilutions is to calculate the concentration of microorganisms. Since it would usually be challenging or even impossible to actually count the number of microorganisms in a sample, the sample is diluted and plated to get a reasonable number of colonies to count (usually between 25 to 250 colonies is the goal). Since each colony on an agar plate theoretically grew from a single microorganism,...
QUESTION 1 Which conclusion about progress in leadership research is most accurate? a. most leadership studies...
QUESTION 1 Which conclusion about progress in leadership research is most accurate? a. most leadership studies have yielded useful knowledge b. progress has been much faster than was initially expected c. much has been learned about determinants of effective leadership d. very little is known about the determinants of effective leadershipQUESTION 2 What is the most appropriate strategy for a leader when there is a decision that involves a conflict among the interests of different stakeholders? a. help the...
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock...
please hlep me answer those three questions asap.
Please ignore question 7.
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock solutions from which you can make the buffer; 0.6 M NaH2PO4 (the acid form) and 0.6 M Na2HP04 (the base form). You need to add 3 times more of the base form than the acid form to achieve the desired pH. How will you make this solution? Question 8...
Discussion 1. Describe how the nonconsequential theory of ethics applies in this case. 2. What questions...
Discussion 1. Describe how the nonconsequential theory of ethics applies in this case. 2. What questions might the consequentialist raise after reviewing the facts of this case? Bad Outcome, Good Intentions Chelsea was preparing to drape Mr. Smith's leg in OR 6 for surgery, when she was approached by Nicole, the nurse manager, asked, "Chelsea, please come to OR 3. We have an emergency there and urgently need your skills to assist the surgeon." Chelsea turned to Daniel, the surgical...
Can anyone help me with these questions please? Thanks. 1. How do the allele frequencies compare...
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Pre-lab L07 Solutions, Concentration and Dilutions (10pts) Name 1. How do you determine the polarity of a compound? 2. How do you predict the solubility of a compound based on its polarity? 3. What is the mass/mass percent concentration of a solution? (Describe in detail or write and equation.) 4. What is the mass/volume percent concentration of a solution? (Describe in detail or write and equation) 5. What is the molarity concentration of a solution? (Describe in detail or write...
Grading: 2 points for each if complete and accurate; 1 point if needs more work and O points if not done Directions: Answer the following using your textbook as a resource. 1. Describe fundamental principles for evacuation of a healthcare setting. 2. Describe fire safety issues in an ambulatory healthcare environment. (How can fires be avoided? What should be available in case of a fire and what should you do when there is a fire?) 3. Describe PASS
1. On a serial dilution with the following tubes set up, 1:2, 1:4, 1:8, 1:16, 1:32, and 1:64, there is no visible agglutination in the 1:64 tube. What is the titer of the antibody? A. 32 B. 16 C. 64 D. Cannot be determined 2. If you want to make 2 mL of a 1:20 dilution, how much serum would be needed? 3. When 1.0 mL of serum is added to 3.0 mL of diluent, what dilution does this represent?...
please help with whatever possible. thank you so much in
advance.
Name One use of serial dilutions is to calculate the concentration of microorganisms. Since it would usually be challenging or even impossible to actually count the number of microorganisms in a sample, the sample is diluted and plated to get a reasonable number of colonies to count (usually between 25 to 250 colonies is the goal). Since each colony on an agar plate theoretically grew from a single microorganism,...
please hlep me answer those three questions asap.
Please ignore question 7.
Question 7 Working with buffers You need 100 ml of 120 mM phosphate buffer and you have two stock solutions from which you can make the buffer; 0.6 M NaH2PO4 (the acid form) and 0.6 M Na2HP04 (the base form). You need to add 3 times more of the base form than the acid form to achieve the desired pH. How will you make this solution? Question 8...
Discussion 1. Describe how the nonconsequential theory of ethics applies in this case. 2. What questions might the consequentialist raise after reviewing the facts of this case? Bad Outcome, Good Intentions Chelsea was preparing to drape Mr. Smith's leg in OR 6 for surgery, when she was approached by Nicole, the nurse manager, asked, "Chelsea, please come to OR 3. We have an emergency there and urgently need your skills to assist the surgeon." Chelsea turned to Daniel, the surgical...
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