Questions from General Chemistry

Q: The following data were obtained in calibrating a calcium ion electrode for

The following data were obtained in calibrating a calcium ion electrode for the determination of pCa. A linear relationship between the potential and pCa is known to exist. a. Plot the data, and draw...

Q: A 6.881-g sample containing magnesium chloride and sodium

A 6.881-g sample containing magnesium chloride and sodium chloride was dissolved in sufficient water to give 500 mL of solution. Determination of the chloride content of a 50.0-mL aliquot resulted in...

Q: Seawater contains an average of 1.08 × 103 ppm of

Seawater contains an average of 1.08 × 103 ppm of Na+ and 270 ppm of SO42-. Calculate a. The molar concentrations of Na+ and SO2- given that the average density of seawater is 1.02 g/mL. b. The pNa a...

Q: The following are relative peak areas for chromatograms of standard solutions of

The following are relative peak areas for chromatograms of standard solutions of methyl vinyl ketone (MVK). a. Determine the coefficients of the best fit line using the least-squares method. b. Constr...

Q: A 50.0-mL portion of a solution containing 0

A 50.0-mL portion of a solution containing 0.200 g of BaCl2 . 2H2O is mixed with 50.0 mL of a solution containing 0.300 g of NaIO3. Assume that the solubility of Ba1IO322 in water is negligibly small...

Q: What is a buffer solution, and what are its properties?

What is a buffer solution, and what are its properties?

Q: Define a. ligand. b. chelate.

Define a. ligand. b. chelate. c. tetradentate chelating agent. d. adsorption indicator. e. argentometric titration. f. conditional formation constant. g. EDTA displacement titration. h. water hardness...

Q: Why are multidentate ligands preferable to unidentate ligands for complexometric titrations?

Why are multidentate ligands preferable to unidentate ligands for complexometric titrations?

Q: The data in the following table were obtained during a colorimetric determination

The data in the following table were obtained during a colorimetric determination of glucose in blood serum. a. Assuming a linear relationship between the variables, find the least-squares estimates o...

Q: Describe three general methods for performing EDTA titrations. What are the

Describe three general methods for performing EDTA titrations. What are the advantages of each?