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Describe the preparation of 2.00 L of 0.100M pH 9.00 glycine buffer starting with the sodium chloride salt of zwitterionic glycine and 1.00M NaOH. If a reaction that generated 2.00 mmoles of base were carried out in 100 mL of the above buffer, what would be the final solution pH? (The pKa values of the carboxyl and protonated a-amino groups of glycine are 2.35 and 9.78, repectively.)
There are two stable isotopes of gallium. their masses are 68.9257 amu and 70.9249 amu. If the average atomic mass of gallium is 69.73 amu, what is the natural abundance of the lighter isotope
2NO (g)+ Br2 (g) yields 2NOBr (g) What is the rate of disappearance of Br2 when [NO]= 5.9×10-2 M and [Br2] = 0.26 M
Consider the reaction that occurs during the Haber process: The equilibrium constant is 3.9 x 10^5 at 300 K and 1.2x10^-1 at 500 K calculate delta H rxn and delta S rxn.
how much carbon dioxide in kilograms is produced upon the complete combustion of 28.4 rm l of propane approximate
Calculate the masses of (a) KNO3 and, separately, (b) Ba(NO3)2 to add to a 0.110 mol kg^-1 solution of KNO3(aq) containing 500 g of solvent to raise its ionic strength
Draw the carboxylic acid produced from the acid hydrolysis of butyl acetate (butyl ethanoate)
When heated gently with methanol, compound B, C5H8O4, is obtained. Compound B has IR absorptions at 2500-3000 (broad), 1730, and 1701 cm-1, and its proton NMR spectrum in D2O consists of resonances at d 2.7
what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15...
A certain binary compound has the formula XO, where X denotes the other element in the binary compound. A 31.20 g sample of the compound, when subjected to string reducing conditions, leaves 23.39 g of the reduced element. Identify the element by ..
If 0.100g of a known inorganic complex [Ni(H2O)4(NH3)2]Cl2 is dissolved in 1000mL of water how many mL of 0.025 M AgNO3 would be required to titrate the liberated chloride
Acyl chloride can hydrolyze in water spontaneously to carboxylic acid. In the interfacial polymerization water is used as one of the solvent, why you don't have to worry about the hydrolysis of sebacoyl chloride in this action
The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a new electronic component. Assume that the standard deviation of this assembly time is 3.6 minutes.
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