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A lactic acid/lactate ion buffer solution contains 0.24 M HC3H5O3 and 0.82 M C3H5O3^-, respectively. The Ka value of lactic acid is 1.4*10^-4. Calculate the of this buffer. Express the pH numerically.
first determine the number of moles of rm na using the given molarity and volume. next use the chemical formula to
Torsional strain resulting from eclipsed C!H bonds is approximately 4.2 kJ (1.0 kcal)/ mol, and that for eclipsed C!H and C!CH3 bonds is approximately 6.3 kJ (1.5 kcal)/ mol. Given this information, sketch a graph of energy versus dihedral angle f..
the bright-red color of highway safety flares comes from strontium ions in salts such as srno32nbspand srco3. burning a
concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ÃŽ¼g/mL Ca standard solution and diluted to 200.0 mL. Find the weight percent of Ca in the rock sam..
When 2.00 mol of NOCl(g) was heated to 225 degrees celcius in a 400L steel reaction vessel, the NOCl partially decomposed according to the equation 2 NOCl(g) -->2 NO(g) + Cl2(g)
Given your knowledge of complex ion formation, what do you expect to happen to the solubility of ZnS(s) in a solution containing excess NH3?
compute the ph for each of the given cases in the titration of 50.0 ml of 0.210 m hypochlorous acidhcloaq with 0.210 m
If 975g of copper is heated from 20 degrees C to 80 degrees C what amount of heat is absorbed?
What are the similarities and differences between a classical harmonic oscillator and a quantum harmonic oscillator?
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
An aqueous solution contains 12.5% NaCl by mass. What mass of water (in grams)is contained in 2.5L of the vapor above this solution at 55 celcius? the vaor pressure of pure water at 55 celcius is 118 torr.
If 113 g of Pb(NO3)2 reacts stoichiometrically according to the balanced equation, how many milliliters of 2.96 M aqueous NaI are required?
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