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The reaction of calcium oxide with the pollutant, sulfur trioxide, to produce calcium sulfate has been proposed as one way to remove the the SO3 from the smoke resulting from burning high sulfur coal (as in a power plant). Using the values from appendix C in the text Calculate the Standard free energy change for the reaction at 298K.
CaO = (-635.1) all in KJ/molSO3 = (-395.7)CaSO4 = (-1434)
Calculate the moles of N2 that will be in 224 L at STP and the partial pressure of O2 in Pa for air at 2.50 atm pressure
You have a 10.40 g mixture of table sugar (C12H22O11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point is found to be -2.24°C. Calculate the percent by mass of sugar in the mixture.
A 2.000 ton block of aluminum at room temperature (22 degrees celsius) is struck by lightning. The lightning transfers 8.000 x 10^6 kJ of energy to the block
If 37.0 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 37.1 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced?
You mix 55 mL of 1.00M silver nitrate with 25 mL of 0.81 M sodium chloride. What mass of silver chloride should you form?
Calculate the pH of the solution after the addition of 0.100 mL NaOH. The Ka for HC2H3O2 is 1.8x10^-5.
What are the average calories (not Calories) per gram for each of your food items?
A helium-filled balloon has a volume of 2.63 L at 28 ? C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day.
There is a mixture that is soluble only in methylene chloride. I wanna run the column in 10% Ethyl acetate/hexanes. Which method of column loading should I use in this case and why?
a .50 g sample of vegetable oil is placed in a calorimeter when the sample is burned 18.9kJ are given off what is the caloric value of the oil.
Since phosphate ionization of 2.14, 6.86 and 12.4. you make stock buffer 500mM in 1L. You decide to make one stock pH 6.5 and the other ph 7.2 How many mmols of what type of phosphate componet do you add to each of these buffers?
A sample of nitrogen gas at a pressure of 698 mm Hg and a temperature of 86oC, occupies a volume of 14.4 liters. If the gas is heated at constant pressure to a temperature of 116 oC, what the volume of the gas sample will be in L.
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