If a compound has a log Kow value of 6.5, what would be its predicted concentration (in ppm) in the fat of fish that swim in water containing 0.000040 ppm of that chemical?
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If a compound has a log Kow value of 6.5, what would be its predicted concentration...
For pesticide HCB (hexachlorobenzene), its logarithmic partition coefficient log Kow is 5.6. What would be the predicted concentration of HCB in the fat of a fish that lives in water containing 0.000020 mg/L of HCB? According to the calculation, how many times could HCB be bioconcentrated in the fish fat compared to its concentration in water? Based on the result, discuss the environmental impact of organic pesticide on biological species.
help with the following awnser is The solution / answer in red. show all steps 14. The concentration of methadone in trout in Salt Spring Lake is 2.3 ppb on average. In the lake's water, the concentration of methadone is 55 ng/L, Assume that the fish contain 5.0% fat and that the water's density is 1.0 g/mL. Calculate methadone's octanol-water partitioning coefficient and its log value. 2 pts Kow 836 Kow-10 2.92 14. The concentration of methadone in trout in...
An important parameter is called the octanol-water partition coefficient, Kow, which is related to the tendency of molecules to accumulate in fat tissue. Consider Benzene, for which the octano-water partition coefficient is 135. Suppose you do extractions from a 75.0 mL sample of water containing.250g/L of benzene. a) What is the concentration (g/L) of benzene remaining in the water after 1 extraction using 10.0ml portions of octanol? b) how much octanol would you need per extraction, to remove 99.99% of...
A dissolved chemical in water has a concentration of 30 ppm by mass. What is the quantity of water needed to have 1 gram (0.0022 lb.) of this chemical? (Select the best answer and then click 'Submit.') 0251 O 301 33.31 37.5L
Benzene: Kow: 1.99 Aqueous Solubility: 2000 mg/L Vapor Pressure: 75 mmHg Spill description: A truck containing 5000 grams of your assigned chemical has spilled into a closed lake with the following dimensions: 100 meters long, 100 meters wide, and 1 meter deep. What is the concentration of your chemical (in grams per liter) in the lake assuming it quickly reaches equilibrium and lake is filled to the brim with water? This is not something we covered specifically in class; however,...
A neutral solution of water at a particular temperature has a concentration of OH of 6.5 x 10M. What is kw at this temperature? 1 2 X 5 6 C 8 9 0 X 100
4 5 points - The compound PbSOhas a Ksp value of 1.82x10-6. What is the predicted molar solubility of the compound? B 7 A I E 1 xx, 12pt Paragraph DP
QUESTION 1 A river flows at 25 ML/d. It has a Chemical X concentration of 1 mg/L. Chemical X cannot exceed 3 ppm in this body of water. A facility discharges 5 ML/d of treated water. What is the maximum concentration of Chemical X that can be in that effluent?
which of the following would be a correct definition for pKa -the inverse log (1/log value of the Ka -the pH of the acidic solution when the acidic form has been completely converted to its conjugate base form
The concentration of Cu2+ ion in a sample of spring water is 5.3 ppm. What mass of Cu2+ ion is present in 6.5 L of this pring water, which has a density of 1.00 g/mL? O 2.6 g 0 0.068 g O 0.034 g O 0.34 g