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Problem- Chlorofluorocarbons, or freons, diffuse into the upper atmosphere. There, ultraviolet light indicated a radical chain reaction that has been shown to cause extreme damage to________.
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Determine the value of the overall reaction order in the rate law expression. Rate=k[A]^n [B]^m, from the following data.
Problem- In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 34.0mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78..
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients (whic..
Explain a solution of 1.00 g of anhydrous aluminum chloride AlCl3 in 50.0 g of water is found to have a freezing point of -1.11 degrees Celsius. Define Kf (H20) = 1.86 degrees Celsius/m.
At equilibrium, it is found that .25 moles of COCl2 remain. What is the equilibrium concentration of CO?
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume. Solution A: 1.31% (m/v) starch Solution B: 7.48% (m/v) starch
Label each of the following reactions as exothermic or endothermic ("exo" or "endo"), and according to whether work is done on or by the system, or no work is done at all ("on", "by" or "none")
Calculate the individual concentrations of C and of D in the following unknown mixture: Compound C: Absorbance at 365nm = 0.150 Absorbance at 470nm
Methanol burns in oxygen to form carbon dioxide and water. Calculate Delta H rxn at 25 . = kj ?? 2) calculate Delta S rxn at 25 degree c = j/k?? 3) delta G at 25 degree C = ? kj?? 4) spontaneous
Which solution will have the lowest boiling point?
Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.79 g of adrenaline in 33.5 g
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would be expected in the sediment.
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