Questions from General Chemistry

Q: Use a spreadsheet, and construct curves for the following titrations.

Use a spreadsheet, and construct curves for the following titrations. Calculate potentials after the addition of 10.00, 25.00, 49.00, 49.90, 50.00, 50.10, 51.00, and 60.00 mL of the reagent. Where nec...

Q: For an oxidation/reduction titration, briefly distinguish between a

For an oxidation/reduction titration, briefly distinguish between a. Equilibrium and equivalence. b. A true oxidation/reduction indicator and a specific indicator.

Q: How is an oxidation/reduction titration curve generated through the use

How is an oxidation/reduction titration curve generated through the use of standard electrode potentials for the analyte species and the volumetric titrant?

Q: The method of standard additions was used to determine nitrite in a

The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portion of the sample was mixed with 24.00 mL of a colorimetric reagent, and the nitrite was converted to a c...

Q: How does calculation of the electrode potential of the system at the

How does calculation of the electrode potential of the system at the equivalence point differ from that for any other point of an oxidation/reduction titration?

Q: Under what circumstance is the curve for an oxidation/reduction titration

Under what circumstance is the curve for an oxidation/reduction titration asymmetric about the equivalence point?

Q: Why are KMnO4 solutions filtered before they are standardized?

Why are KMnO4 solutions filtered before they are standardized?

Q: Briefly explain why the concentration units of milligrams of solute per liter

Briefly explain why the concentration units of milligrams of solute per liter and parts per million can be used interchangeably for a dilute aqueous solution.

Q: Why are solutions of KMnO4 and Na2S2O3 generally stored in dark reagent

Why are solutions of KMnO4 and Na2S2O3 generally stored in dark reagent bottles? Answer Standard permanganate and thiosulfate solutions are generally stored in the dark because their decomposition...

Q: Briefly explain why there is no term in an equilibrium constant expression

Briefly explain why there is no term in an equilibrium constant expression for water or for a pure solid, even though one (or both) appears in the balanced net ionic equation for the equilibrium.