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What are the relative percentage of HCN and cyanide ion in a dilute aqueous solution at pH+9.2/ At pH=10.2?
What are the poles of the following transfer functions?
Combining aqueous solutions of BaI2 and Na2SO4 gives a precipitate. Which ion(s) is/are spectator ions in the reaction
Determine heat of neutralization per mole of water formed for the reaction of NaOH and HCl with the following data
A volume of 25.0 mL of .100 M HCl is titrated against a .100 M NH3 solution added to it from a buret. Calculate the pH value of solution (a) after 10.0 mL of NH3 solution have been added and
.35 M NaOH solution to reach the equivalence point. Determine the molar mass of the acid and given nthat the pH at the half way point to the equivalent point is 3.86. Calculate the Ka of the unknow acid.
HNO3 by mass and has a density of 1.047 g/mL. What is the pH?
Consider the compounds water, ethylamine, acetone, and aniline, whose Kb values can be found here. Classify them by whether they can be appreciably (Keq>1) protonated by: pyridinium, CH3OH2 , both, or neither.
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
At 760K, 85% of a sample of cyclopropane changes to propane in 79.0min. Calculate the value of the rate constant for this reaction. All isomerization reactions are first-order.
What is the fraction of NTA present after HT2- has been brought to equilibrium with solid PbCO3 at pH 7.00, in a medium in which [HCO3-] = 1.00E-3 M?
Calculate the percent ionization of 0.085 moles/l of lactic acid in a solution containing 0.050 moles/l sodium lactate
the interferometer mirror of an FTIR spectrometer travels + or - 1.0 cm. Calculate the approximate resolution (cm^-1) for such a spectrometer. At what retardation interval, delta, must the interferogram be sampled to cover the spectral range of 0 ..
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