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Chlorine has been used for decades to disinfect drinking water. An undesirable side
Chapter 16, Problem 16-E(choose chapter or problem)
Chlorine has been used for decades to disinfect drinking water. An undesirable side effect of this treatment is reaction with organic impurities to create organochlorine compounds, some of which could be toxic. Monitoring total organic halide (designated TOX) is required for many water providers. A standard procedure for TOX is to pass water through activated charcoal, which adsorbs organic compounds. Then the charcoal is combusted to liberate hydrogen halides: HX is absorbed into aqueous solution and measured by coulometric titration with a silver anode: When 1.00 L of drinking water was analyzed, a current of 4.23 mA was required for 387 s. A blank prepared by oxidizing charcoal required 6 s at 4.23 mA. Express the TOX of the drinking water as mol halogen/L. If all halogen is chlorine, express the TOX as g Cl/L.
Questions & Answers
QUESTION:
Chlorine has been used for decades to disinfect drinking water. An undesirable side effect of this treatment is reaction with organic impurities to create organochlorine compounds, some of which could be toxic. Monitoring total organic halide (designated TOX) is required for many water providers. A standard procedure for TOX is to pass water through activated charcoal, which adsorbs organic compounds. Then the charcoal is combusted to liberate hydrogen halides: HX is absorbed into aqueous solution and measured by coulometric titration with a silver anode: When 1.00 L of drinking water was analyzed, a current of 4.23 mA was required for 387 s. A blank prepared by oxidizing charcoal required 6 s at 4.23 mA. Express the TOX of the drinking water as mol halogen/L. If all halogen is chlorine, express the TOX as g Cl/L.
ANSWER:Step 1 of 6
The reaction can be given as:
‘
One mole of 
One mole of electron is equal to 96485 C.
The current is 4.23 mA which is equal to 0.0-423 A.
0.423 A is equal to 0.423 coulombs per second.