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A certain sample of coal contains 1.2% sulfur by mass. While the coal is burned the sulfur is converted to sulfur dioxide (SO2). To prevent air pollution, SO2 is treated with calcium oxide (CaO) to form calcium sulfite (CaSO3) as shown in the reaction below
SO2(g) + CaO(s) --> CaSO3(s)
Compute the daily mass (in kilograms) of CaO needed by a power plant that uses 6.60 ×106 kg of coal per day.
Explain if material properties tensile strength, conductivity, etc. are a function of crystal structure will the measured properties of various materials vary with crystal orientation? How can you explain this
The osmotic pressure of the solution is 1.21 atm at 27 °C. What is the molar mass of the solute?
Calculate the wavelength of the light emitted when an electron in a hydrogen atom makes each of the following transitions as well as state the region of the electromagnetic spectrum (infrared, visible, ultraviolet, etc.)
Calculate the minimum mass of hydrochloric acid that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
Compound A, C9H12, undergoes nitration to give 3 products. The 1H NMR spectrum of A shows a complex three-proton multiplet at 6.92-6.99 ? and a nine-proton singlet at 2.34 ?
Determine the percent yield if a student decomposes H 2 O to Form hydrogen (H) and oxygen(O). If the student starts with 34.7 grams of H2O and collects 20.0 grams of oxygen,
A sample of an unknown gas effuses in 11.7 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.23 min. What is the molar mass of the unknown gas?
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced
A buret containing NaOH solution has an initial reading of 0.14ml. 25.00ml of 0.1000M HCl is titrated to a phenolphthalein end point,
1.isomerization of cyclopropane to propene is yielding the activation energy for this process is 274 kjmol. by what
Calculate the maximum mass of calcium metal that should be used in this experiment with a 50mL eudiometer tube for gas collection. Assume that the hydrogen generated occupies 45 mL at STP. The experiment is: reaction of .054 g of Al with 100 mL of..
What types of intermolecular forces would you expect to exist among molecules of 1-butanol?
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