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If the rate constant of a first order reaction is 4.87 x10-5s-1 at 15 deg C. Compute the rate constant at 80 deg C if the activation energy is 250Kj/mle (R=8.314J/K mole)
Does a chemical change occur when you cook an egg? Why or why not? When you fry an egg, it becomes a solid, the heat makes it smoke, and the color changes from clear and yellow to all yellow.
Starting with the standard free energies of formation from the following table calculate the values of change of G and Ecell of the following reactions
Menthol is a crystalline substance with a peppermint taste and odor. When 0.705 g of menthol is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 3.76 °C.
Calculate the millimoles of sodium hypochlorite used in the reaction: 2.3 mL of a 5.25% solution(Clorox). Compare this value with the quantity of cyclohexanol to be used in the reaction. Would you describe the oxidant as being present in slight ex..
Determine the mass of acetamide present per kg of water if the freezing point of this solution is 0 °C. (The freezing point of pure water is 0°C (exactly) at 1 atm pressure and the molal freezing-point-depression constant for water is 1.86°C/m.)
Demonstrate how you could prepare each of the following compounds from Propene and any necessary organic or inorganic reagents.
A 1 g sample of C8H16O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 39.28 kJ of energy. What is the enthalpy of formation of C8H16O?
Hydrogen cyanide (and organic nitriles, which contain the cyano group) can be catalytically reduced with hydrogen to form amines
In a combustion analysis, 2.00 mg of vitamin C yielded 3.00 mg CO2 and 0.816 mg H2O. From mass spectrometry, it was found that the molecular weight of vitamin C is 176 amu. Find out the mass composition of vitamin C its empirical formula and its m..
Some 2-methyl-2-butene may be produced in the reaction as a by-product. Give a mechanism for its production.
You dilute 1 ml of this solution to 25 ml with distilled water; the measured absorbance is 0.2. What is the concentration of the original concentrated solution
calculate the ratio of dissolved benzoic acid to benzoate ion at equilibrium. Ka for enzoic acid is 6.46 X 10^-5
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