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The ratio of the solubilities called the partition coefficient, KD = C2 / C1, in this experiment is defined as an [organic]/[water] equilibrium constant-the concentration of solute in the organic phase is in the numerator of the KD expression and the concentration of solute in the aqueous phase is in the denominator. For this liquid-liquid extraction, how would the chemical equation for the equilibrium be written to correctly show the solute being distributed between the two phases?
Thermochemistry : Comparing Heat Capacity of Bricks and Water, A house is designed to have passive solar energy features. Brickwork incorporated into the interior of the house acts as a heat absorber. Each brick weighs approximately 1.8 kg
Aluminum chlorhydrate is added to antiperspirants to stop people from sweating. If this compound contains neutral H2O molecules and Al3+, OH- and Cl- ions, and the formula of this compound is Alx(OH)5Cl 2H2O, what is the value of x in this formula
The volume of a gas sample is 650. mL at STP. What volume will the sample occupy at 25.0°C and 950. torr pressure.
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
How many grams of Fe2O3(s) are produced from 500.0 g of FeS2(s) and 400.0 g of oxygen gas?
Identify the Qual I cation(s) that is(are) confirmed present in a reference solution by: the formation of a precipitate. the color of a soluble complex ion. the characteristic color of a flame test
When the flask was re-filled with an unknown gas, the same number of moles leaked out in 2.84 hours. Identify the unkown gas.
the rate constant k for a first order reaction is 1.36 10 -3 s -1 at 90 degrees celcius and the activation energy is
The substance CS2 has a melting point of -110.8°C and a boiling point of 46.3°C. Its density at 20°C is 1.26 g / cm3. It is highly inflammable. a.)Name this compound.
the freezing point (5.5 C) and boiling point (80.1 C) of benzene and the temperature difference between these points was divided into 50 units (called X), what would be the freezing and boiling points of water in X
How many moles of CO2 will be produced in the combustion reaction starting with the 15.02 grams of ethane.
The reaction is allowed to reach equilibrium. At equilibrium the number of moles of B is 18.32. Calculate the equilibrium constant for the reaction A (g) + 2B (g) reacting with 3 C(g)
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