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The partition coefficient between ligroin and water for solute A is 4. What weight of A would be removed from a solution of 12 g of A in 100 mL of water by a single extraction with 100 mL of ligroin?
Explain how the acid hydrolysis of starch differs from the enzyme catalyzed hydfolysis. Compare products as well as conditions of time
Calculate deltaS(Jmol^-1K^-1) for oxalic acid and delta S (Jmol^-1K^-1) for the combustion of one mole of oxalic acid.
A 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal.
From the number if moles of ammonia calculated in part (a - below) determine the number of micrograms of mitrogen per gram of dry soil. Assum you have 2.753 f of soil and all of the ammonia diffused from the soil.
Acylation of n-propylbenzene gives an unexpected side product. Explain this occurance and give a mechanism.
Protein Quantification :why did you choose one standard curve over the other for analysis of your unknown?
A pound of coffee beans yields 53 cups of coffee (4 cups = 1 ). How many milliliters of coffee can be obtained from 1 of coffee beans?
a solution is prepared by adding 30.00 g of lactose milk sugar to 110.0 g of water at 55 degc. the partial pressure of
After adding 0.25 mL of 0.50 M NaOH, the pH of the same solution changed to 8.05. Calculate the buffer capacity (? mmol OH-/? pH) of this solution to two decimal places.
Write the equation for this reaction, labeling the acid, base, conjugate acid, and conjugate base
calculate the theoretical yield of when 108 g of c2h5cl reacts with 236 g of assuming that and react only to form
Silicon Carbide is a hard substance used as an abrasive. it is prepared by heating SiO2 and carbon at high temperatures SiO2 + 3C = SiC + 2 CO determine the limiting and excess reactant.
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