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Acid rain was at one time an important point of contention between the United States and Canada. Much of this acid was the result of the emission of sulfur oxides by coal-fired electricity-generating plants in southern Indiana and Ohio. These sulfur oxides, when dissolved in rainwater, formed sulfu- ric acid and hence "acid rain." How many metric tonnes of Indiana coal, which averages 3.5% sulfur by weight, would yield the H2S04 required to pro- duce a 0.9-in. rainfall of pH 3.90 precipitation over a 104 square mile area
Ammonia,NH3 ; ammonium nitrate,NH4NO3 ; and ammonium hydrogen phosphate (NH4)2HPO4, , are all common fertilizers. Rank the compounds in order from largest mass percent of nitrogen to smallest mass percent of nitrogen.
The pH of a sample of rain is found to be 3.2. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2.
An unknown metal m reacts with sulfur to form a compound with the formula M2S3. If 3.12g of m reacts with 2.88g of S, what are the names of M AND M2S3
Determine the heats of formation or the steric energies of the exo- and endo-anhydride adducts using a molecular mechanics program.
During the isomerization of trans-1,2-dibenzoylethylene C16H12O2 using 95% Ethanol C2H6O , and UV light irradiation. What is the overall equation for this reaction. What is the product.
For the same atoms at the lattice points, which lattice exhibits the lowest density? (please explain your reasoning) (A) body-centered cubic (B) face-centered cubic
A flask contains 0.430 of liquid bromine, . Determine the number of bromine molecules present in the flask
Calculate the pH of a solution in which the concentration of the hydronium ion is 2.0 x 10^-4 M.
Plot NO2 versus time, ln NO2 vs time, and 1/NO2 vs time. Which graph yields the best straight line? what is the reaction order with respect to NO2? Briefly explain
calculate the volume of carbon dioxide, measured at 273 k and 1.01 x 10 5 Pa, which would be produced when 1.25 g of calcium carbonate reacts completely with the hydrochloric acid.
calculate the theroretical yield of C2H5Cl when 123 g of C2H6 reacts with 220 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl
If you place a drop of cyclohexane onto a drop of water that is located on a glass surface, what would happen to the hexane and the water
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