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Acid rain is caused in part by burning coal that contains sulfur impurities. The sulfur is converted first to SO2, which reacts with oxygen and atmospheric moisture to produce sulfuric acid, H2SO4. If a particular coal contains 2.9% sulfur (by mass), calculate the mass of sulfuric acid produced by burning a metric ton (1000 kg) of the coal
An unknown acid is dissolved in water. The solution is divided into two equal parts and one part is titrated to a phenolphthalein end point with NaOH solution. The two solutions are then mixed and the resulting pH is found to be 3.25. What is the ..
Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm. (1 inch = 2.54 cm)
assuming no heat loss, and that the specific heat (capacity) of water is 4.184 J/g*K, what is the heat capacity of the copper in J/K?
draw reaction mechanisms for the e1 and the two e2 reactions. predict the major products for these reactions based on
It is the universal solvent d. it does not participate in the reaction e. it is necessary for the formation of the bromonium ion
What do these results tell us about the difference in molecular mass between the aroma molecules and the colour molecules? In the lab there were both an 80C and a 100C distillate
Rutherford fired positively charged particles at metal foil and concluded that most of the mass of an atom was..a) in the electrons.
because of the slightly solubility 0.59mgl. of ba3po42 all of the ba2- and po43- do not precipitate from solution.a.
A gas at 740 mmHg pressure at 25 degrees C is cooled to -10 degrees C. What is the final pressure in mmHg?
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container. what is the total pressure in the container at equilibrium?
A buffer solution is 1.20 M in HF and 1.40 M in NaF. If 0.230 moles of HCl are added to 1.00 L of the buffer, what is its pH? Assume the volume remains constant. Ka of HF = 7.2 10-4.
How many mL of 12.0 M HCl should be added to 500 mL of 0.100 M Na2SO3 (Kb2 = 8.13 x 10-13 and Kb1 =1.5 x 10-7) to produce a buffer at pH of 7.00?
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