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Define exposure assessment, and describe the seven steps involved in an exposure-assessment strategy.
Apply each step to a scenario where you, as an industrial hygienist, are asked to describe a worker's exposure to cadmium during a brazing operation.
Using this information and the Clausius-Clapyron equation (P = const•exp(-?Hvap/RT)), calculate the vapor pressure of 3 nm droplets of mercury.
Calculate the pH of the buffer prepared by mixing 35.0mL of 0.15M HC2H3O2 with a 25.0mL of 0.10M NaC2H3O2. K(a) for HC2H3O2 = 1.8 x 10^-5
Many home barbeques are fueled with propane gas C3H8 What mass of carbon dioxide (in kg}) is produced upon the complete combustion of 18.9 { L} of propane (approximate contents of one 5-gallon tank)
Tungsten has a boy-centered cubic unit cell and an atomic radius of 141 pm. What is the density of solid tungsten.
At what temperature (in oC) does 11.25 g of krypton occupy a volume of 5.44 L at a pressure of 1.07 atm? Report your answer to 3 significant figures and do not include units in your answer.
The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a volume of 100.0 mL. Find the pH after 3.7 mL of acid are added.
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
Problem- Water freezes at -10 deg Celsius. Determine the sign of delta S, delta H and delta G for the freezing process and explain why
Electrolysis can be used to determine actomic masses. A current of .600 amperes deposits 2.42 grams of a certain metal from its salt solution in 1.00 hour. A second experiment shows that the dissolved salt of the metal is in a +1 oxidation state.
Forecast the products of the following oxides with water Na2O, BaO, CO2, N2O5, P4O10, SO3. State an equation for each of the reactions specify whether the oxides are acidic, basic or amphoteric
Draw the structure for the molecule that fits the following description and then name it according to IUPAC formalism.
An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.270M and [H2S]= 0.360M. What is the value of the equilibrium constant (Kc) at this temperature?
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