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Pyruvate dehydrogenase plays a important role in regulation of glycolysis and the oxidation of pyruvate. Which two mechanisms are accountable for this regulation? Explain.
A solution of acetic acid, HC2H3O2, on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.68, what was the original concentration of the acetic acid
You have 47.2 mL of a solution of copper(II) chloride (CuCl2?). You need to determine the concentration of Cu2+ in the solution gravimetrically.
3. Concentrated acetic acid is a Class II combustible liquid. What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion?
a 6.75-g sample of gold specific heat capacity 0.130 jg oc is heated using 34.6 j of energy. if the original
1)What is the percent ionization of HA in 0.11 mol/L HA(aq) if HA is a weak acid with pKa=6.00. Enter your answer accurate to three significant figures.
Caprylic acid (144.21g/mol), pKa= 4.89, density= 0.910 g/cm3, solubility= 0.068g/100mL, melting point= 16.7 c, boiling point= 239.7 c. What is the pH of a saturated aqueous solution
A certain first-order reaction has a rate constant of 1.00x10-3 s-1. How long will it take for the reactant concentration to drop to 1/8 of its initial value?
In one experiment, when 112 grams of calcium oxide was mixed with 224 grams of ammonium chloride, 16.3 grams of ammonia was produced. What is the percent yield of ammonia in the experiment
Define what values of J may occur in the terms (a) 1S, (b) 2P, and (c) 3P? Explain how many states distinguished by the quantum number Mj belong to each level
if electricity of sufficient voltage is passed into a solution of potassium iodide in water a reaction takes place in
An 80.0-gram sample of gas was heated from 25*C to 225*C. During the process, 346 J of work was done by the system and its internal energy increased by 7205J. What is the specific heat of the gas
Calculate the molar concentration of a potassium chloride solution if 2.4 liters contains 2.00 moles of KCl. Calculate the molar concentration of 15 frams of KCl in 1.5 liters of solution.
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