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The partition coefficient of benzoic acid is three in dichloromethane (a.k.a. methylene chloride) with respect to water.
1. If 6 grams of benzoic acid were dissolved in 600mL of water, explain how much benzoic acid would be extracted with four150-mL portions of dichloromethane
2. After four extractions, explain what percentage of the benzoic acid has been extracted use percent recovery?
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
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what are the heats of formation of the following species.
Calculate [H+] and the pH of the following solutions
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The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
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Write a stepwise mechanism using arrows to show movement of electrons for the reaction of 1-butyne with hydrogen bromide to produce 2,2-dibromobutane. CH3CH2CCH + 2HBr --------->CH3CH2CBr2CH3
What quantity of heat is required to vaporize 0.500 mL of Hg at 357 degrees celsius its normal boiling point. The density of Hg is 13.6 g/mL
what is the formula for the compound that crystallizes with a cubic closest packed array of sulfur ions and that contains zinc ions in 1/8 of the tetrahedral holes and aluminum in 1/2 of the octahedral holes
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