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Define why the pKa at infinite dilution increases for some compounds as well as decreases for others when compared to the pKa at finite dilutions.
A solute with MW = 67.1 g/mol is prepared in an aqueous solution in which the molality is 3.08 m. The solution density is 1.0616 g/cm^3. To simplify the following calculations, assume that the solution contains exactly 1 kg of solvent.
the rate law for the decomposition of n2o5 is rate kn2o5. if k 1.0 x 10-5exp s-1 what is the reaction rate when the
Explain why in an aqueous electrochemical cell, nitrate ions never react at the anode, but nitrite ions do
He finds that the total pressure at equilibrium is 40% greater than it was originally. What is Kc for this reaction?
Use the mean value that you determined for Keq to calculate the SCN- concentration in a solution Fe3+ concentration was 4.00 X10-2M and initial SCN- concentration was 1.00 X10-3 M. Is all of theSCN- in the form ofFeNCS2+?
Indicate whether the final volume of gas in each of the subsequent is the same, larger or smaller than the initial volume A) A volume of 500ml of air on a cold winter day at 5 degrees is breathed into the lungs
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
What would the appropriate substrate concentration be? b) At what substrate concentration would you expect 30% of the enzyme molecules to have substrate bound?
A battery is constructed based on the oxidation of magnesium and the reduction of Cu^2+. The initial concentrations of Mg^2+ and Cu^2+ are 1.2×10?4M and 1.6M, respectively, in 1.0-liter half-cells.
lead to two products. Draw the major product that is observed in practice, as well as the preceding intermediate.
The water sample has a phenolphthalein alkalinity of 3.0 e -5, a pH of 10 also a bicarbonate ion concentration of 1.0 e -4 M. Define what is the total alkalinity in moms/L
What is the molarity of a solution made by dissolving 5.69 g of sodium acetate in water and diluting to 750. mL? (molar mass NaC2H3O2 is 82.0 g/mol.)
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