4. Why do you think only two drops of phenolphthalein are used in these titrations (HINT:...
Phenolphthalein is used in titrating KHP with NaOH. Why? Is phenolphthalein required for a potentiometric titration of a weak acid with NaOH? Why or why not?
find the term isosbestic point.? [a. Explain why the isobestic point would be a poor choice of wavelength for determiningpKa? 5. Phenolphthalein is an indicator often used for weak acid-strong base titrations. The acid form of phenolphthalein is colorless and the base form is pink. Do you think the pKa of phenolphthalein would be determined using the same the method from this experiment to find the pKa for bromothymol blue? Explain why or why not? I dont need the answer...
Consider the structures of KHP and phenolphthalein and explain why each has a single acidic hydrogen (one that dissociates as a weak acid) when there are several hydrogen atoms in the structure (HINT: Review the rules for predicting acid strength).
In lab I performed two strong base/weak acid titrations with two different analytes. I also performed a blank titration with only water as the analyte. What was the point of the blank titration?
Why do you think most firms issue debt instead of only issuing equity? explain. Why do you think a highly profitable firm like Apple (AAPL), with almost $250 BILLION of cash on hands, would issue debt? explain.
Why do you think the 'Summit Series' was so important, not only for Canada but in the world?
Why do you think it is important to only consider only relevant costs when conducting a differential analysis? Why not consider all possible costs in your decision. Be sure to provide examples to back up your ideas. TOPIC: Differential Analysis
WHY do you think economic profit would be used in merger discussions?
Why do you think that the United States is the only developed nation in the world without universal health insurance? In the long run, do you believe a single payer system is the proper model for the U.S. health care system? Why or why not? What can we learn from the experience of other countries that can help us decide which policy direction to pursue?
Why do you think we've developed and used such a different type of accounting for not-for-profits and municipalities?