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Polychlorinated biphenyls (PCBs), which were formerly used in the manufacture of electrical transformers, are environmental and health...

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Chemistry

Polychlorinated biphenyls (PCBs), which were formerly used inthe manufacture of electrical transformers, are environmental andhealth hazards. They break down very slowly in the environment. Thedecomposition of PCBs can be represented by the equation:

2C12H4Cl6 + 23O2 + 2H2O --> 24CO2 + 12HCL

Answer parts (a) through (e) below: a) How many moles of waterare needed to react 10.0 mol O2?

b) How many grams of HCl are produced when 15.2 mol H2Oreact?

c) How many moles of CO2 are produced when 76.5 g HCl areproduced?

d) How many grams of C12H4Cl6 are reacted when 100.25 g CO2 areproduced?

e) How many grams of HCl are produced when 2.5 kg C12H4Cl6react?

Answer & Explanation Solved by verified expert
3.6 Ratings (363 Votes)
2C12H4Cl6 23O2 2H2O 24CO2 12HCL a Water mol when n 10 mol of O2 ratio 2 mol of H2O per 23 mol of O2 10 mol 22310 0869 mol of H2O b 152 mol of H2O how many    See Answer
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