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Explain the particle in a one dimensional box is sometimes used as a model for pi electrons in a conjugated bond system.
a) Determine the first 3 energy levels for a pi electron in 1, 3 butadiene. Presume a carbon carbon-bond length of 1.25x10-10 m and presume that the box is hard and consists of the three carbon carbon-bonds plus and additional length of 1.39x10-10 m at each end.
Menthol, the substance we can smell in mentholated cough drops, is composed of C, H, and O. A 6.030×10^-2 mg sample of menthol is combusted, producing 0.1697 mg of C and 6.954×10^-2 mg of H2O. What is the empirical formula for menthol
Calculate the solubility of Carbon Dioxide in water at an atmospheric pressure of .50 atm.( a typical value at high altitude). Atmospheric Gas: CO2 Mole Fraction
How do you calculate the effective nuclear charge of an electron using slater's rules for Krypton
molecules can be as small as a few atoms or as large as thousands of atoms. in 1962 max f. perutz and john c. kendrew
the temperature of the solution increases to 26.5 C. Calculate the enthalpy change, Delta H, for this reaction per mole of X. Assume that the specific heat and density of the resulting solution are equal to those of water
a microwave oven operates at 2.40 ghz. what is the wavelength of the radiation produced by this appliance? in nano
To cool a volume of water from 176° K to 100° K, 7.9 x 104 J of heat energy must be removed. What is the volume of water that was cooled?
the bright-red color of highway safety flares comes from strontium ions in salts such as srno32nbspand srco3. burning a
Converting Grams and Moles, To do this assignment, use your calculator to do the calculations required. Then invert the calculator to read the message word. Insert the message word into the appropriate space in the statement
question a chem 216 student titrated 5.15 g of an unknown weak acid with 0.92m of naoh. equivalence point was found to
Consider: C7H16 (l) + 11 O2 (g) → 7 CO2 (g) + 8 H2O (l) ΔH°reaction=- 4130 kJ. How much energy is released when 4.000 moles of C7H16, is combusted?
Starting with a 5-carbon alcohol, a 6-carbon alcohol, and malonic ester, complete the synthesis and name the product(using the Malonic Ester Synthesis)
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