You are conducting a series of experiments on the effects of 2-chlorophenol (pk=8.56) on a microorganism by adding varying concentrations of 2-chlorophenol to an electrolyte solution consisting of 0.01 m nacl. you can safely assume that nothing other than the chlorophenol will affect the ph of the water. do not ignore activity coefficient corrections in this problem. a. you want to monitor the concentration of total chlorophenol (i.e., the sum of the protonated and deprotonated forms) in the test solutions. derive an equation to show how the total chlorophenol concentration can be monitored with a ph meter. b. graph the relationship between ph and total chlorophenol concentration between ph 6 and 7. c. assuming that the ph meter is only accurate to 3 significant figures, what is the lowest detectable chlorophenol concentration? (i.e., at what total chlorophenol concentration will ph equal 6.995? )
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Ответ:
C. 22 grams because mass cannot be created or destroyed
Explanation:
In this reaction and in any chemical reaction, mass is expected to always be conserved.
According to the law of conservation of matter "in a chemical reaction, matter is neither created nor destroyed but can be changed from one form to another".
Based on this law, the mass of reactants and products must be the same in a chemical reaction. So, the sum of the mass of the reactants must be equal to the mass of the product.