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1. H2CO3 (carbonic acid) is a polyatomic acid. State the equations showing the successive dissociations.
2. For a 0.6M NH41+ solution, compute H+, pH, and [OH-].
3. For a 0.8M solution of H2CO3, compute [H+] , [HCO32-], pH, pOH and [OH-].
A 20.00-mL sample of 0.150 M KOH is titrated with 0.125 M HCIO4 solution. Calculate the pH after the following volumes of acid have been added.
Assuming that the limits of the visible spectrum are approximately 380-700nm, find the angular range of the first-order and second-order visible spectrum produced by a plane grating that has 900 grooves/mm with the incident source radiation normal..
What effect would an increase in temperaure have on the experimentally determined Ksp of KHT?
A sample of gas occupies 175ml at 10C and 750torr. What volume will the gas have at 25C and 790 torr?
A mixture is expected to contain 9.2 x 10-4 M SO42- and 1.6 x 10-3 M C2O42-. If the Ksp values for BaSO4 and BaC2O4 are 1.1 x 10-10 and 1.0 x 10-6, respectively, determine if Ba2+ can be added to precipitate 99% of the SO4 2- from the solution wit..
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg
Write a balanced chemical reaction for the formation of "soap scum" from a mixture of soap and "hard" water
Draw the major product for each of the following reactions. Make sure that you draw a major product that could be isolated, not just an intermediate or something that would be present only in low equilibrium population.
An iodine solution of unknown molarity was titrated against a 0.001M solution of S2O3^2-. The blue black iodine-starch complex just disappeared when 20.2 mL of thiosulfate was added. What is the exact molarity of the I2 solution.
Titration with sodium thiosulfate required the use of 18.94mL of 0.07992M Na;>203' Find the molarity of ascorbic acid in the juice.
Calculate the volume (mL) of a .150 M KOH solution that will completely neutralize 10.0mL of a 0.560 M H3PO4 solution?
If a molecule containing only oxygen and nitrogen is 36.8% Nitrogen by mass, what is the emperical formula
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