Determine the ph at the equivalence point for the titration
Calculate the pH at the equivalence point for the titration of 0.20 M aniline (C6H5NH2, Kb = 3.8 x 10-10) with 0.20 M HCl. [Hint: remember the dilution factor caused by addition of titrant to the aniline solution.]
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Calculate the molarity of a solution made by dissolving 0.810 grams of Na2SO4 in enough water to form exactly 890 ml of solution.
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x = - 2.0 cm. A second, parallel wire carrying a 3.5 A current intersects the x-axis at x = + 2.0cm .
A particular solvent with and is being considered for an experiment. In the experiment, which is to be run at 75 , the solvent must not boil. Based on the total entropy change associated with the vaporization reaction, would this solvent be suitab
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x= - 2.0 cm . A second, parallel wire carrying a 3.5 A current intersects the x-axis at x=+ 2.0cm .
Treat the subskin tissue as a motionless conducting medium. The ambient air temperature under the same conditions is 11ºC. Calculate the heat transfer coefficient between skin and ambient air.
A 568- physics student stands on a bathroom scale in an 880- (including the student) elevator that is supported by a cable. As the elevator starts moving, the scale reads 480. If the scale reads zero, should the student worry? Explain.
Calculate the value of Gibbs free energy change and the equilibrium constant under standard conditions for the following reactions. (Show all work to receive karma pts)
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