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Analytical Chemistry and Industrial Hygiene, summarize in paragraph form. Type written-Arial 12pt., one to two pages.
1. Do some research on the internet and determine the status of industrial hygiene and occupational safety and health prior to about 1900. What were some of the earlier efforts to address these issues?
2. Describe atomic absorption spectroscopy and gas chromatograph mass spectrometry and what they are used for?
Calculate the percent ionization of propionic acid (C2H5COOH) in solutions of each of the following concentrations
Draw a diagram showing the hydrogen bonding of an ammonia molecule with two other ammonia molecules. (Draw complete Lewis structures.
Calculate the ph when 47.0 mL of 0.309 M of a certain monoprotic weak acid, HA, is mixted with 47.0 mL of 0.309 M of sodium hydroxide solution
Predict whether each of the following oxides is acidic, basic, amphoteric, or neutral: CO2, NO2, Al2O3, CaO.
Write the balanced chemical equation that represents the addition of CL2 to CH3CH=CH2.
nbspthe density of diamond is 3.63 gcm3 and the density of lead is 11.0 gcm3. if equal masses of diamond and lead are
sample melts before you were ready to read the temperature. Should you cool the capillary and start again or prepare a fresh sample? Explain.
What kinds of aromatics will not react with CHCl3/AlCl3?
Draw a rough sketch of the energy profile for each of the following cases. a. E = +10 kJ/mol, Ea = 25 kJ/mol b. E = -10 kJ/mol, Ea = 50 kJ/mol c.
Problem- 1) Calculate the resolution for a 1115.5 keV Zn peak that has a FWHM of 2.01 keV. 2) Calculate the resolution for a 1115.5 keV Zn peak that has a FWHM of 200 keV.
Calculate the pH at the equivalence point for the titration of 0.10 M HCl with 0.10 M NH3 (Kb = 1.8 x 10-5).
Consider the possible reaction when stoichiometric amounts of solutions of Ba(OH)2(aq) and Al2(SO4)3(aq) are mixed. The products of the reaction are
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