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Chemical dechlorination is a method for destroying PCB waste. How many kilograms of potassium ethoxide (KOEt, or KOC2H5)
Is it polar or non polar? Why? How reactive is ozone? Can you comment or show reactions of ozone with pollutants or chemicals in the atmosphere?
When there is a bulk spill of this chemical, why is it necessary to prevent the liquid from entering nearby streams and lakes?
What precautions, or actions, should the EH&S or FS professional take when faced with this situation?
A gas originally occupies 20L at 24.7 psia and 5 C. What would the pressure be if the volume changed to 4.77ft3 and the temperature was 82 F?
The lethal inhalation dose of sarin for a 200 pound person has been determined to be 0.0015 mg.
What experiment would you propose to minimize the role of photorespiration in plants and ideally see increased growth as a result?
Hardness in groundwater is due to the presence of metal ions, primarily Mg2+ and Ca2+. Hardness is generally reported as ppm CaCO3.
Based on Liquid Chromatography, how can I changed if the capacity value and selectivity value and resolution value is not in the proper range?
A leaking metal can containing 10.0 kg of the pesticide was dumped into a stream with a flow of 10.0 Liters per second moving at 0.7 km/hr.
Calculate the volume of air (at 25 degrees, 1 atm) required for this conversion. Assume that the O2 is transferred to the water with 20% efficiency.
In 1993, the Thomas Hill power plant (a small, coal-fired plant supplying rural electric cooperatives) produced 7100000.0 MW-hr.
The partial pressure and Henry's law constants for SO2 and H2O2 are 2.7 ppm (KH = 1.2 mol L-1atm-1) and 4.9 ppb (KH = 1.0E5 mol L-1atm-1)
With respect to chromated copper arsenate, the arsenate has the formula AsO4(-3). Is there a way to render the arsenate ion less harmful?
Provide one key solution to help either reduce the effects or recover from the effects of the selected issue.
Assuming the body weight of a fish is 4% fat, what is the equilibrium concentration of parathion in the fish swimming in this lake?
What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3? Show your solution.
Two important allotropes of elemental phosphorus are white phosphorus and red phosphorus.
When sulfuric acid is a component of polluted air, it chemically attacks statues, memorials and monuments made from limestone.
Why might this fire rekindle days later as someone tries to remove the residue with water? What chemical process is involved here?
A new global sustainable business and industry incubator network is expanding into a Paris suburb.
What is the greatest current threat(s) to U.S. farmlands, and what are some possible solutions to it(them)?
You use a properly calibrated explosimeter to measure the flammable hazard inside a tank that contained toluene and may still have some residual product.
Discuss two ways that ammonium compounds decompose when they are heated. What chemical reaction is involved in the thermal decomposition of ammonium persulfate?
What economic impact was generated by the law? What kinds of costs, fines, or economic benefits are associated with the law?