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Q) A drum that has been used to collect hazardous waste contains an organic phase in which the mole fractions of benzene, toluene, and o-xylene are 0.32, 0.27, and 0.21, respectively. At the ambient temperature of 25°C, the vapor pressures of these three chemicals are 0.126, 0.038, and 0.012 atm.
(a) If the organic phase behaves ideally with respect to Raoult's law, estimate the partial pressures of the three major constituents in the head space in the drum.
(b) Some rain water that has leaked into the drum and is present as a separate phase. If Henry's law applies to this phase, what are the mole fractions of the three constituents in the aqueous solution
Throughout the photosynthetic activity of algae the pH of the water is 10.0. Compute CO2, HCO3, CO3(2-), and OH- and the weight of biomass, CH2O produced. Presume no input of atmospheric CO2.
To what volume should you dilute 44.0 mL of a 4.60 M KI solution so that 28.5 mL of the diluted solution contains 3.65 g of KI
a particular amino acid in an ion exchange chromatogra phy column. What is the peak width after the amino acid has migrated 100 cm?
The initially colorless solution turns red, and the color change can be measured with a spectrophotometer. Calculate the concentration of apotransferrin present in the original 3.50 mL solution
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The equilibrium constant for a reaction 2SO2 + O2 2SO3 is 2.8 x 10^2 at a certain temperature. If [ SO2 ]^2 = 0.0124M and [ O2 ] = 0.031M, what is [SO2]
Complete and balance the following redox equation using the smallest whole-number coefficients. Show the steps. Sn (s) + HNO3 --> SnO2 (s) + NO2 + H2O (not balanced, assume acidic solution)
The half-life of mercury-197 is 64.1 hours. A. If a patient undergoing a kidney scan is given 5.0 ng of mercury-197, how much will remain after 7 days? B. After 33 days
Compute mass of Carbon dioxide formed from the decomposition of 59.0 grams of NaHCO 3 ?
What is the strongest attractive force that must be overcome in order to do the following: a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride
The density of chloroform, a widely used organic solvent, is 1.4832 at 20 . How many milliliters would you use if you wanted 119.0 of chloroform.
Calculate the proton motive force across the inner mitochondrial membrane a 25 degrees C when theelectrical difference is -0.18 V (inside negative), pH outside us 6.7, and pH inside is 7.5.
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