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What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
Balance the following skeleton reaction and include states of all reactants and products in your balanced equation.
two mwthods were described for determining the volume of the flask used for the molar mass determination.
A steel cylinder with a volume of 15.0 L is filled with 50.0 G of nitrogen gas at 25 degrees C. What is the pressure of the N2 gas in the cylinder
Draw a structural representation to describe the H-bonding responsible for the high boiling point of ethylamine and the structural representation of the H-bonding present when ethylamine dissolves in water.
the value of the molar absorptivity is 4.84*10^3 M^-1 cm^-1 for K2CrO4 at that wavelength. what is the concentration of the solution
Consider a chromatogram containing a single analyte with retention time of 4 minutes. The mobile phase elution time is 0.2 minutes. What is the capacity factor (k') for the analyte in question?
The proton NMR spectrum of compound D is given below. Treatment of compound D with ethyl magnesium bromide yields A. Draw the structures of compounds A, B, C, and D. 1H NMR of D: d 8.1-7.5, multiplet, 5H; 2.85, quartet, 2H; 1.30, triplet, 3H.
Write the balanced molecular equation for the combustion of methanethiol in an excess supply of oxygen.
the simplest cycloalkyne has how many carbons? What is the Isoelectric point for aspartic acid. (Amino Acid PI)
Explain how a change in the amount of a product causes a shift in equilibrium?
When determining the pressure of dry hydrogen gas, explain how the measured atmospheric pressure is corrected for the presence
Propose a method to accurately measure the melting point of vegetable oil both before and after hydrogenation. Keep in mind that it will be too thick and greasy to insert in a capillary tube
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