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Polychlorinated biphenyls (PCBs) have been used extensively as dielectric materials in electrical transformers. Because PCBs have been shown to be potentially harmful, analysis for their presence in the environment has become very important. PCBs are manufactured according to the following generic reaction: C12H10 + nCl2 yields C12H10n-1Cln + nHCl This reaction results in a mixture of PCB products. The mixture is analyzed by decomposing the PCBs and then precipitating the resulting Cl as AgCl. a. Develop a general equation that relates the average value of n to the mass of a given mixture of PCBs and the mass of AgCl produced. b. A 0.1947-g sample of a commercial PCB yielded 0.4791 g of AgCl. What is the average value of n for this sample?
Determine whether the system is best described by the Margules or the van Laar equation and determine the parameters of the corresponding equation.
Under these conditions, name one crystalline defect that you would expect to form in order to maintain charge neutrality. How many Cu+ ions are required for the creation of each defect? How would you express the chemical formula for this nonstoichiom..
find the voltage and power at the sending end and the voltage regulation.
Think about how a growth factor would work to attract the cell to the surface and how these proteins could be anchored to the surface so that this functionality is not compromised.
mining and metallurgy assignment metallurgyyou need to assess the viability of an ore classification algorithm to be
A transformer has its maximum efficiency of 0.9800 when it delivers 15 kVA at unity power factor.
determine the optimum values of x and y involved in Eqs. (92) to (95).
Operation of a modern telephone handset, In a modern telephone handset, the microphone uses a piezo-electric crystal and the earpiece is a miniature loud speaker using a moving coil and a permanent magnet.
1. A newly constructed power plant proposes to burn coal with a sulfur content of (a) 1.8 and (b) 2.4 percent by weight. If the plant is to meet the new source review performance standard (see attached CFR new source regulation), what percent of SO 2..
A3m3 tank is divided into two parts via a thermally insulated wall. One part has a volume of 2 m3 and contains a vapor-liquid mixture of steam, 7% liquid, at 5 bar. The other part contains steam at 10 bar, 500 °C. A valve is opened and allows th..
Determine the number of barrels of mud gained due to pumping the slug and determine the feet of dry pipe. Mud weight = 12.6 ppg.Slug weight = 14.2 ppg.
Product X takes 1 machine hour per unit and Product Y takes 5 machine hours per unit. Which of the following is one of the constraints for this linear program?
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