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Determine whether each of the following statements is true or false. If the statement is false, modify and rewrite it so that it is a true statement.
a. When a molecule has two, degenerate, "infrared active", vibrational modes, the two vibrational modes will show absorptions at different frequencies in the infrared spectrum.
b. For a given substance, strong intermolecular forces between molecules of the substance can cause peak broadening of some of the absorptions in the infrared spectrum of the substance.
The total pressure in an 12.4L automobile tire is 42psi at 15 degrees Celsius. how much does the pressue in the tire rise if it warms to a temperature
The normal freezing point of benzene is 5.5 degrees C. A benzene solution contains 62.5 mg of naphthalene (MW = 128g/mol) per 1.00g benzene. The solution freezes at 3.0 degrees C. What is the molal freezing point constant for benzene
Treatment of the following stereoisomer of 1-bromo-1,2-diphenylpropane with sodium ethoxide in ethanol gives a single stereoisomer of 1,2-diphenylpropene. Draw the E2 elimination product of the reaction.
Calculate the number of moles of hydrogen, oxygen and sulfur in a 100-g sample of a compound composed of the following: 2.1 grams hydrogen, 65.3 grams oxygen, and 32.6 grams sulfur.
Compare and contrast the following: size exclusion chromatography and ion exchange chromatography. points to include would be methods of action used in both, examples of use for both, advantages and disadvantages and levels of sensitivity or detec..
Calculate the quantity indicated for each of the following electrolyses. Enter scientific notation as 1.23E4. (a) [Cu2+] remaining in 5.70E2 mL of a solution that was originally 0.412 M CuSO4, after passage of 3.50 A for 289 s and the deposition o..
Why would you put a metal sample in a test tube and then in boiling water to heat it instead of putting the metal sample directly in the boiling water
The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 5.63×10^-6m that must be absorbed to melt 3.30g of ice.
determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;
What is the minimium wavelength of light necessary to ionize an atom of sodium? what is the minimum wavelength of light necessary to ionize a mole of sodium atoms?
Calculate the work done (in joules) against a pressure of 1.0 atm at 25 o C. If 3 moles of H 2 react with 3 moles of Cl 2 to form HCl while
specific brand of gourmet chocolate candy contains 7.00 rm g of dietary fat in each 22.7-rm g piece. How many kilograms of dietary fat are in a box containing 4.00 lb of candy?
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