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a student who was isolating aspirin stopped the experiment after the filtration step with alumina. One week later, the methanol was evaporated and the experiment was completed. The melting point of the aspirin was found to be 110-115 celsius. Explain why the melting point was low and why the melting range was so wide
What is the energy per photon of the lowest frequency of electromagnetic radiation that can be used to observe a gold atom with a diameter of 280 picometers.
The buret continues to drain, slowing gradually until coming to a complete stop, as depicted on the right side. At that moment, the total pressure of the gases inside the flask just equals the total pressure of the atmosphere plus the additional p..
Derived from common sense is the same as the one derived mathematically from the equation obtained in the experiment.
diamond crystallizes in a cubis cell with a+0.35670 nm and Z=8. Using 3.51 g/cm cubed as the density of diamond calculate te value of avagadro's number.
What is the mechanism for the compound with the starting materials maleic anhydride, THF with curved arrows
given that the length of the edge of a unit cell is 383 pm, determine the density of iridium in g/cm3.
Calculate how long will it take for a sample of radionuclide with a half-life of 27.1 days decay to 1.0% of its original value.
Draw the structure of the dimer. Water (circled) is eliminated when the bond between the monomers forms. Circle the atoms of the ester functional group.
Determine the number of moles of oxygen that would be needed to completely combust 0.0350 moles of benzene
Write balanced molecular, ionic and net ionic equations for each reaction that occurred in experiment
Based on your observations, what might have happened if you had not followed these instructions? Might this also have affected your percent yield? Explain.
prepare a PH = 4.00 buffer staring from 1.50 L of 0.0200 M solution of benzoic acid (c6h5cooh) and an excess of sodium benzoate
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