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Problem- The typical energy differences for transitions in the microwave, IR, and electronic spectroscopies are 5x10^-22 J , 0.5x10^-19 and 1x10^-18 J. Calculate the ratio of the number of molecules in two adjacent energy levels at 300 K in each case.
Working it out this problem, provide your answer in scientific notation
compound a has a room-temperature solubility of 20.2 gl-1nbspin a certain solvent while compound b has asolubility of
Calculate the relative proportions of two conformers A and B in a compound, assuming that an energy of 15.5 kj/mol is required to go from
Problem- For 1 hour average value, a city reports 0.19 ppm ozone. The permissible limit is 0.12 ppm ozone. By what amount, in ppm, does the reported value exceed the permissible limit
Calculate the pH after the addition of 0.00mL, 20.00mL, 24.00mL, 25.00mL, 26.00mL, 35.00mL, 44.00mL, 45.00mL, 46.00mL and 50.00mL of 0.200 M HClO4.
Write the reaction to demonstrate the formation of the adduct from 1,3 - diphenylcyclopentadiene and 2 - butyne - 1,4 - dicarboxylic acid diethyl ester.
an aqueous ammonium chloride solution rather than sulfuric acidis used in the hydrolysis of the magnesium complex
a calorimeter contains 25.0 of water at 14.0. when 1.80 of a substance with a molar mass of 82.0 is added it dissolves
What is the overall mass-transfer coefficient for oxygen (O2) from the atmosphere to the river? (b)Which part of the transfer mechanism controls the overall rate
Vapor pressure of water at 25 deg C is 24 mmHG and that of pure methanol is 120 mmHG. What is the vapor pressure above the solution of methanol and water at 25 deg C. What is the mole fraction of methanol in the vapor above this solution. 32 g of ..
What is the name of the sticky gelatinous precipitate that is formed in the primary treatment process and carries away suspended dirt particles and bacteria?
What is the mass percentage of iron in a sample if titration of 1.2284g of the sample requires 57.91 mL of .1018M of Ce(NH4)2(NO3)6 for complete reaction?
the normal boiling point of benzene is 80.1 c celsius and the heat of vaporization is hvap 30.7 kjmole. what is the
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