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Problem- If the 8 hour Time Weighted Average exposure are determined by charcoal tube sampling to be 60ppm toluene, 20ppm methylene chloride, and 20 ppm turpentine, using OSHA's personel exposure limits, has there been an over exposure?
Illustrate structures to prove your interpretation.
Reaction of an Alcohol to Produce an Alkyl Halide, N-butanol reacts with NaBr and H2SO4 to produce n-butyl bromide, via refluxation reaction in a lab experiment.
question a mixture of 0.200 mol of no2 and 0.200 mol of co is placed in a 1.00l flask and given time to equilibrate.
If one spot on TLC plate in a certain solvent system can conclude that your sample is pure? If not, explain what can do to prove conclusion
The amount of nitrogen in an organic subsxtance can be determined by an anlytical method called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammonia.
What is the longest wavelength of light that can break the O-H bond. The bond dissociation energy of an O-H bond is 463kj/mol
Which of the following will have the lowest freezing point?
The reagents available other than DI water are 3.0 M solutions of any acid or base that you may need. How would you go about preparing this buffer
An excess of AgNO3 reacts with 100.0 mL of an AlCl3 solution to give 0.325 g of AgCl. What is the concentration, in mol/L, of the AlCl3 solution
a seed crystal of diameter d mm is placed in a solution of dissolved salt and new crystals are observed to nucleate
Find the activity coefficient of H+ in a solution containing 0.010 M HCl plus 0.040 M KClO4
Assuming that the volume of a solid or liquid was independent of the external pressure, we deduced that there was no change in the Gibbs free energy of a solid or liquid when the pressure is changed.
Draw the line and wedge structures of the products obtained on addition of iodine azide to both cis and trans-2-butenes. Assign ‘R' or ‘S' to the asymmetric centers in your product.
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