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Atrazine is an herbicide widely used for corn and is a common groundwater pollutant in the corn-producing regions of the United States. The log Kow for atrazine is 2.65. A typical application rate is 0.25 g/m2. Assume a volume of soil of 1 m3 and calculate the fraction of total atrazine that will be adsorbed to the soil given that the soil has an organic carbon content of 2.5%. The bulk density of the soil is 1.25 g/cm3; this means that each cubic centimeter of soil (soil plus water) contains 1.25 g of soil particles. The porosity of the soil is 0.4.
How much energy is released per Kg of Dilithium formed? Mass of one atom of 6 Li is 6.015121 amu. Do not know where to start.
chlorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid. The Z reacts about 50 times faster
the heat capacity for the heat capacity of the calorimeter in calculating the enthalpy of reaction. What effect would ignoring this have on the calculation?
To study the effect of a weakly acidic medium on the rate of corrosion of a metal, a chemist prepared a buffer solution by making it 0.11 M NaC2H3O2
What is the resulting pH of this solution? b. The OCl- form of this acid is less effective as a disinfectant
Write the balanced 1) molecular, 2) total ionic, 3) net ionic reactions, and identify the spectator ions for the following: sodium sulfate(aq) + strontium nitrate(aq) -->
water for the temperature of the trapped gas, will the calculated mass percent of metal in the sample be greater than, less than, or equal to real mass percent?
approximately how many grams of NH4Cl will dissolve in 100g of H2O at 70 C?
The reaction 2NO2(g)-----2NO(g)+O2(g) was studied at 383dgree c and the following data was obtained?
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?
The compounds below cannot be identifed from IR and H NMR spectra alone. Explain. Suggest how other types of spectroscopy might be useful in solving the structure
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