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1. During an acid-base titration, 23.3 mL of HCl completely neutralized 19.5 mL of potassium hydroxide 0.315 M. Calculate the concentration of the hydrochloric acid.
2. What is the pH at the equivalence point during an acid-base titration of NaOH and HCl, having identical molarities? Justify
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To find the of X-281, you prepare a 0.086 test solution of X-281. The pH of the solution is determined to be 2.70. What is the of X-281
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Explain how the Pka hisdidine 57 is important to its role in mechanism of chymotrypsin action
find out the molecular formula and empirical of this compound and determined to contain 4.36 grams of phosphorus and 5.64 grams of oxygen
1.70 atm of I2 and 1.30 atm of Br2 are loaded into an evacuated container. The following reaction takes place with Kp = 117.6 Calculate the equilibrium partial pressure of bromine gas. No approximations can be made because the equilibrium constant..
Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Ch telier's principle
the contents of one 40-lb bag of topsoil can cover 10.0 square feet of ground to a depth of 1.0 in. how many bags are
Sorbose, C6H12O6, is used in making vitamin C. A sorbose sample containing 96.0 g of carbon atoms also contains ____ g of hydrogen atoms.
a typical deposit of cholesterol c27h46o in an artery has a mass of 3.90 mg. how many molecules of cholesterol are
disintegrations per minute per gram of carbon. Using the half-life of carbon-14, 5715 yr, calculate the age of the charcoal sample.
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