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The pain reliever phenacetin is soluble in cold water to the extent of 1.0 g/ 1310 mL and soluble in diethyl ether to the extent of 1.0 g/90 mL. The distribution coefficient for phenacetin in these two solvents then, is 0.0167.
If 50 mg of phenacetin were dissolved in 100 mL of water, how much ether would be required to extract 90% of the phenacetin in a single extraction?
A reaction has the following rate law Rate = k[A][B]2. In experiment 1, the concentrations of A and B are both 0.10 mol L-1; in experiment 2, the concentrations are both 0.30 mol L-1. If the temperature stays constant, what is the value of the rat..
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4, gave carboxylic acid D. Identify compounds A, B..
A stream of air (21% O2 m, the rest N2) flowing at a rate of 10.0 kg/h is to be mixed with a stream of CO2 inside a mixer. The CO2 enters the mixer at a rate of 20.0 m/h at 150 ?C and 1.5 bar. What is the mole percent of CO2 in the product stream
What would a developed TLC plate look like if the original plate was placed so that the spotting line was below the developing solvent level
A person ate 0.451 pound of cheese (an energy intake of 3610 kJ). Suppose that none of the energy was stored in his body. What mass (in grams) of water would he need to perspire in order to maintain his original temperature? (It takes 44.0 kJ to v..
If you were to get methanol wet and it contained water, what compound would be formed and isolated along with trityl methyl ether
Consider the following system which has been shown to be spontaneous at 298K and select the true statement below. the ?S for the system is predicted to be negative, so therefore the ?S for the surroundings must be positive to a greater extent so tha..
Chloroform has Hvap=29.2 kj/mol and Svap=87.5j(K*mol). what is the boiling point of chloroform in Kelvins
If 85.0 J of heat is added to 50.0 g of nickle at 25.0 C , what is the final temprature of the nickle?
Oxygen coming off the 2nd carbon and the 2nd carbon is also attached to the N. Two Carbons are attached to the Nitrogen). Account for the fact 2 equivalents of amine must be used.
The air is cooled as the water evaporates. How much water must be evaporated to cool the air in a room of dimensions 4.0 m x 5.0 m x 3.0 m by 20. C? Assume that the enthalpy of vaporization of water is the same as it is at 25 c.
To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 4.8- bulb, then filled it with the gas at 1.40atm and 20.0 degC and weighed it again.
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