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How did Rutherford interpret the following observations made during his a-particle scattering experiments?
(a) Most a particles were not appreciably deflected as they passed through the gold foil.
(b) A few a particles were deflected at very large angles.
(c) What differences would you expect if beryllium foil were used instead of gold foil in a the scattering experiment?
A calibration is performed with a standard solution of iron in water. Aniron solution in methyl ethyl ketone is analysed based on this calibrationfunction. Is it likely to yield an accurate result? or would the result be toohigh or too low? Explai..
The energy bar contains 100 mg of sodium, which constitutes 4% of the maximum recommended daily intake of sodium.
The half-life of carbon-14 is 5730 years. Therefore, 5730 years after being cut from a tree, a piece of wood will have 50.0% of the carbon-14 that it had originally.
Approximate the p binding energy for benzene the benzene cation, also the benzene anion. Must be in terms of a and ß.
What is the standard free energy of the cell. Is this process spontaneous or non-spontaneous. It makes sense that in order to produce electricity, the plant's redox process should be spontaneous
The specific enthalpy of a wet steam at 150.3°C (5 bars) is determined from the Steam Table to be 2,429 kJ/kg. Caculate the quality of the steam.
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 20.0 L
Formic acid has a Ka TEN times larger than that of acetic acid. In solutions with the same molarity, the formic acid solution will have this many times the [H+] of the acetic acid.
Thin-layer chromatograph------Describe how the Rf for a compound will change as the developing solvent is made more polar. What is meant by "developing" a TLC plate. What is meant by "visualization" of a TLC plate
Using the data shown in the table, calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 3.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation
Titration of 25.00 mL of HCl requires 15.62 mL of 0.250 M Ba(OH)2. Determine the concentration of the HCl solution
if 5.25ml of 0.1000 m naoh solution is needed to just neutralize excess acid after 20.00 ml of hcl was added to 1.00 g
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