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The distribution coefficient, KD for an organic compound between water and methylene chloride is 3.40. An aqueous solution of the organic compound contains 0.500 g per 100 mL and is extracted with 50.0 mL of methylene chloride. What percentage of the organic compound originally in water is extracted?
What is the balanced equation for copper (II) hydroxide + acetic acid (HC2H3O2)? and what is it's reaction, single, or double replacement.
Gaseous NOBr is placed in a closed container at -180 oC, where it partially decomposes to NO and Br2: 2 NOBr(g) 2 NO(g) + 1 Br2(g) At equilibrium it is found that p(NOBr) = 0.008230 atm, p(NO) = 0.004080 atm, and p(Br2) = 0.004130 atm.
A mixture of hases contains 0.330 mol CH4, 0.230 mol C2H6 and 0.270 mol C3H8. The total pressure is 1.55 atm. Compute the partial pressures of the gases.
If air's density is 1.29 g/l define what three gaseous elements if place in a balloon would cause the balloon to rise in air as well as what three elements would cause the balloon to sink in air
Prepare an electrochemical cell by connecting the negative terminal of a voltmeter to a strip of zinc in a solution of 0.500 M ZnCl2(aq) and the positive terminal to a strip of copper in a solution of 0.100 M CuCl2(aq). The two half-cells are conn..
A mutation in human ATPase 6 (which corresponds to E. coli subunit a) from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits.
Presume the molar solubility of silver chromate (Ag2CrO4) is represented as x. Explain which of the following expressions correctly expresses the relationship between the molar solubility of silver chromate and the solubility product constant (Ksp..
Air has a density of about 1.2 kg/m3. One standard atmosphere (1 atm) is about 105 Pa. Assuming that the density of air remained constant as altitude increased, how high would the Earth's atmosphere have be to create a pressure of 1 atm
This electrophilic addition reaction involves a carbocation intermediate. Protonation of which sp2 hybridized carbon would form the most stable carbocation?
using the hendersoon hasselbach equation calculate the pH of a solution made by adding 50.0mL of 1.00M sodium acetate to 50.0mL
Proteins are sometimes embedded in the lipid membranes of cells. Many such proteins serve as channels to allow various things to flow in and out of the cells. The interiors of lipid membranes are very hydrophobic.
The law of definite proportion would predict that a 70.0 g gram sample of chemical X should contain how many grams of nitrogen?
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