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Describe the nature and characteristics of PCB's. Why are they of importance to an EH&S or FS professional who encounters them when coming upon an incident scene where they are present? What precautions, or actions, should the EH&S or FS professional take when faced with this situation? What happens to FS personnel and their turnout gear once they are exposed/splashed with PCB's?
A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2 ? 10-8]
The end products of the oxidation are carbon dioxide (CO2), ammonia (NH3), and water. Assume that nitrogen not incorporated in cell-tissue production will be converted to ammonia.
61.0 mL of a 1.70 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 119 mL of water. What is the final concentration
If two reactions sum to an overall reaction, and the equilibrium constants for the two reactions are and , what is the equilibrium constant for the overall reaction
How much water must be added to 534. mL of 0.180 M HCl to produce a 0.135 M solution? (Assume that the volumes are additive.)
What are the acidic pKa values of the respective hydroxyl products? Look up the structures on the internet or use the UF library online e-journals.
sodium hydroxide do you need to add to the volumetric flask before you dilute the solution to volume with distilled water?
Determined an aliquot of 0.03526M potassium permanganate solution required to make 100 mL of a 10-3 mol/L solution.
A mixture of Ar and N2 gases has a density of 1.416 at STP. What is the mole fraction of each gas?
WHen 1.187g of a metallic oxide is reduced with excess hydrogen, 1.054g of the metal is produced. What is the metallic oxide
What is the freezing point of a solution that contains 23.0g of urea, CO(NH2)2, in 275mL water, H2O. Assume a density of water of 1.00 g/mL
Predict whether the following reactions will be spontaneous in acidic solution under standard conditions.
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