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A Catechin can undergo acid/base chemistry. Draw the structure of Catechin in solution after excess calcium hydroxide has been added. Also, which structure will be more soluble in water? (The catechin or catechin with excess calcium hydroxide?).
Derive Hill equation. - Explain what "in vitro selection" is and what it is useful for.- Derive the Michalis -Menton equation using the steady-state approximation. Show all your steps.
the following changes in a DNA molecule may have no effect on the protein for which the DNA codes
Potassium nitrate has lattice energy of -163.8 kcal/mol as well as a heat of hydration of -155.5 kcal/mol. Explain how much potassium nitrate has to dissolve in water to absorb 114kJ of heat
The "pop" bottle demonstration requires that hydrogen and oxygen gas mixture be ignited by a flame. True or False: This means that the reaction of hydrogen gas and oxygen gas to form water is endothermic. Support the answer.
What would be the three equations that cancel correctly for Hess Law for the following reaction for Magnesium oxide that you would have Mg(s) + 1/2 O2(g) = MgO(s) ?
Problem- After 57.0 min, 26.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
They were oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. The mass of BaSO4 obtained was 0.5032g. What is the average mass percent of saccharin in the tablets
Describe how you will prepare a H2PO4-/HPO42- buffer using solid sodium dihydrogen phosphate and sodium hydrogen phosphate (pH 7.4, 500 mL 0.40M each). How much solid is needed to prepare each solution? How much volume of each of the solutions sho..
The excess is titrated with standard 0.101 M KSCN solution, requiring 2.38 mL to reach the red Fe(SCN)2+ endpoint. Calculate the concentration of chloride in the brine in g/L
1-iodobutane was synthesized by adding 5.2 g of 1-bromobutane as well as 6.0 g of sodium iodide. Form the reaction, 2.21 g of 1-iodobutane were obtained. Compute the percent yield and theoretical yield. Which is the limiting reagent? Illustrate ca..
A package of aluminum foil contains 100. square feet and weighs 1.2 lbs. One cubic centimeter of aluminum has a mass of 2.70 grams. what is the thickness of the foil in millimeter
The amino acid histidine has 3 pKa's at 1.8, 6.0 and 9.3. In a 0.01 M solution of histidine, what is the concentration of protonated carboxylic acid at pH 7.4. The primary amine. The side chain
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