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Your friend came to you for several questions regarding the volatility, bioaccumulation potential and toxicity of BTEX compounds commonly present in the light fraction of gasoline. You find the following data from a reference book (E. R. Weiner, 2000) and try to help him.
Chemicals Solubility (mg/L) Henry's Law constant (unitless) log KOWBenzene 1750 0.228 2.13Toluene 626 0.272 2.75Ethlybenzene 169 0.323 3.14o-xylene 178 0.213 3.13m-xylene 161 0.301 3.20p-xylene 185 0.314 3.17
(1) Write the chemical structure of each compound.
The acid-dissociation constant of hydrocyanic acid(HCN) at 25.0C is 4.9x10^-10. What is the pH of a aqueous solution of 0.080M sodium
After 42 days a 2.0 g sample of phosphorus 32 contain only 0.25 g of the isotopt. what is the half life of the phosphours 32 ?
calculate the potential of a platinium electrode immersed in a solution prepared by mixing 25.00ml of 0.0918 M SnCl2
how many grams of carbon dioxide would be produced if 45 grams of C6H12O6 completely reacted with oxygen?
It is given that the v.p. of water =233.7 mm Hg.at 70 degree Celsius then calculate the vapor pressure? express your answer in mm Hg ?
You decide to use gel filtration. This works brilliantly and you determine that your protein is 80kDa at the same time. But wait! The gene that corresponds to HMD predicts a protein of only 38kDa. What are two potential causes of this discrepancy?
calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
Calculate the final Celsius temperature of hydrogen chloride gas if 0.500 L at 35°C and 0.950 atm is heated
A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component
What is the heat change in J associated with 65 g of gaseous acetic acid at 127 oC changing to solid at -50 oC? c(acetic acid) (g) = 1.11 J/(g.K) c(acetic acid) (liq) = 2.18 J/(g.K) c(acetic acid) (s) = 1.32 J/ (g.K) ?Hfus(acetic acid) = 192 J/g ?..
How many additional mL of 0.0750 M Ca(OH)2 or ).100 M HCl would be required to neutralize the solution?
a solution is prepared by dissolving 20.0 g of NaI in enoug water tomake 300.mL of solution How many moles of ions are in 25.mL of thesolution?
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