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The cathode center and anode chambers of an electrolytic cell contain each 10 milliequivalents of HCl in aqueous solution. What will be the number of milliequivalents of HCl in each compartment after the passage of 5 milliequivalents of electricity through the cell? Assume that t+ is 0.80 and that H2 is given off at the cathode and Cl2 at the anode.
Draw a phase diagram labeling all the above points. Also label the melting point curve, the boiling point curve, and the solid, liquid, and gas regions.
Identify the charged groups in the peptide shown below at pH=1 and at pH=7. What is the net charge of this peptide at these two pH values? val-met-ser-Ile-phe-arg-cys-tyr-leu
An oxidation-reduction happens in any electrochemical cell; voltaic or electrolytic. (look these terms up in your general chemistry text if you don't remember them.)
Problem- What information about the mechanism of catalysis by trypsin would not be apparent from the protein's amino acid sequence, but only from the 3-dimensional structure illustrated
show the base-catalyzed condensation and dehydration products from aldol condensation of propanal
What is the percent by mass concentration of a solution of 50.0 g sugar in enough water to make 350 g solution
The pH of this acid solution is measured as 3.8. Compute the extent of dissociation of this acid in the prepared solution. The extent of dissociation is the fraction of the acid that is dissociated into the RCOO- anion and H3O+ cation in the aqueo..
the molality of a solution 0.085m and there is 0.0156kg solvent. Calculate the moles of solute present in solution
How do you determine how many electrons are available to partake in a reaction with transition metals?
Calculate the osmotic pressure generated when 14.6 grams of estrogen are dissolved in 275 ml of a benzene solution at 298 K. What is the molarity and osmotic pressure
A stock solution of lactic acid is 0.04M and a stock solution of lactate is 0.25M. Calculate the pKa of lactic acid given that at these concentrations the pH is 3.90
A sample of gas has a mass of 0.565 . Its volume is 119 at a temperature of 80 and a pressure of 746 . Find the molar mass of the gas.
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