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(a) What experimental evidence is there for the electron having a "spin"?
(b) Draw an energy-level diagram that shows the relative energetic positions of a 1s orbital and a 2s orbital. Put two electrons in the 1s orbital.
(c) Draw an arrow showing the excitation of an electron from the 1s to the 2s orbital.
A fossil was analyzed and determined to have a carbon-14 level that is 62.0 that of living organisms. How old is the fossil
What is the relationship among intracellular fluids, 0.9% (W/V) NaCl and 5.0% (W/V) glucose?
Propose a synthesis of ethyl neopentyl ether, C2H5OCH2C(CH3)3, from an alkyl bromide and any other reagents
Of the calorimeter to rise from 22.00C to 34.75C. How much heat (in kJ) did this reaction release. The heat capacity of the calorimeter and its contents is 11.55kJ/C.
What is the wavelength of an electron traveling with a velocity of 7.0 times 10 to the 3rd power?
Sulfuryl chloride, SO2Cl2, decomposes by first-order kinetics, and k = 2.81 x 10-3 min-1 at a certain temperature. Determine the half-life for the reaction.
A solution of acetic acid, HC2H3O2, on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.68, what was the original concentration of the acetic acid
Draw a tetra-peptide that FPHD at pH 2.0. Clearly indicate with a circle what groups would be charged if the pH was changed to 12.0. Draw a box around the peptide bonds
Nickel and aluminum electrodes are utilized to build a galvanic cell. The standard reduction possible for the nickel(II) ion is -0.26 V as well as that of the aluminum(III) ion is -1.66 V.
Calculate the inital pH of buffers A, B, & C using the Henderson-Hasselbach equation.
what is the density of an object having the mass of 8.09 an volume of 25
Each of the following compounds exhibits a single 1H NMR peak. Approximately where would you expect each compound to absorb? a. cyclohexane b. acetone c. benzene d. glyoxal (ethandial) e. dichloromethane f. trimethylamine ((CH3)3N)
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