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1. Explain what are the strengths, weaknesses and implications of the precautionary principle as a method for deciding whether a technology must be used?
2. Compare risk or benefit analysis to the precautionary principle. Explain which of these methods do you feel would generally lead to better decisions on questions involving potential applications of technologies in society? Explain on what reasoning is your conclusion based?
3. Explain how do you think that the question of using DDT for malaria control vs. banning its use worldwide will be resolved?
Why two different proteins that are both 1500 amino acids long would travel together through the polyacrylamide gel in a single band containing both of the two different proteins.
Calculate the molecular mass of the nonionic solutes.
If you look at a reaction equation for an esterification reaction, you cannot tell where the oxygen comes from (acid or alcohol). Knowing the mechanism of this reaction, devise an experiment using O18, to help prove unequivocally where the oxygen ..
You are given 100g agarose (which makes a gel when dissovled in boiling water) and 100 ml buffer. Show how you would prepare 50 ml of a 1.2% agarose gel. weight and volume do not add up
The heat capacity of a system is defined as the ratio of the infinitesimal amount of heat absorbed to the corresponding increase in the temperature when some process is carried out. Show that the heat capacity at constant volume is C_V is equal to
When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. What is the net chemical equation that describes this reaction? Include the phases of all species in t..
The pressure exerted on a 240 mL sample of hydrogen gas at instant temperaure is increased from .428 ATM to.724 ATM. What will the final volume be for the sample be?
The synthesis of imines and enamines typically occurs under mildly acidic conditions, yet the reaction that you will perform in this experiment is successful without the need of such acid. Why
When 0.577 L of Ar at 1.20 atm and 227°C is mixed with 0.296 L of O2 at 501 torr and 127°C in a 400. mL flask at 27°C, what is the pressure in the flask
a 0.50 moll solution of codeine has a poh of 3.05. what is the kb value of
A spherical fat cell has a diameter of 2.47 micrometers. The fat cell contains three copies of the protein azurin. What is the molar concentration of azurin within the fat cell
Carbon-14 has a half-life of 5730 years. Currently living organisms decay at a rate of 15.3 disintegrations/min per gram of carbon.
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