Questions from General Chemistry

Q: Briefly explain why Equation 13-15 can only be used to

Briefly explain why Equation 13-15 can only be used to calculate the hydronium ion concentration of solutions in which NaHA is the only solute that determines the pH.

Q: Why is it impossible to titrate all three protons of phosphoric acid

Why is it impossible to titrate all three protons of phosphoric acid in aqueous solution?

Q: Indicate whether an aqueous solution of the following compounds is acidic,

Indicate whether an aqueous solution of the following compounds is acidic, neutral, or basic. Explain your answer. a. NaH2PO4 b. Na3PO4 c. NaNO3 d. NaHC2O4 e. Na2C2O4 f. Na2HPO4 g. NH4OAc h. N...

Q: Suggest an indicator that could be used to provide an end point

Suggest an indicator that could be used to provide an end point for the titration of the first proton in H3AsO4.

Q: What types of organic nitrogen-containing compounds tend to yield low

What types of organic nitrogen-containing compounds tend to yield low results with the Kjeldahl method unless special precautions are taken?

Q: Briefly describe the circumstance where the concentration of a sodium hydroxide solution

Briefly describe the circumstance where the concentration of a sodium hydroxide solution will apparently be unaffected by the absorption of carbon dioxide.

Q: The solubility products for a series of hydroxides are /

The solubility products for a series of hydroxides are Which hydroxide has a. the lowest molar solubility in H2O? b. the lowest molar solubility in a solution that is 0.35 M in NaOH?

Q: How would you prepare 500 mL of a. 0100

How would you prepare 500 mL of a. 0100MHSO24 from a reagent that has a density of 1.1539 g/mL and is 21.8% H2SO4w/w?  b. 0.200 M NaOH from the solid? c. 008000MNa2CO3 from the pure solid?...

Q: The mishandling of a shipping container loaded with 850 cases of wine

The mishandling of a shipping container loaded with 850 cases of wine caused some of the bottles to break. An insurance adjuster proposed to settle the claim at 20.8% of the value of the shipment, bas...

Q: How would you prepare 2.00 L of a.

How would you prepare 2.00 L of a. 0.10 M KOH from the solid? b. 0010MBaOH2 8H2O from the solid? c. 0.150 M HCl from a reagent that has a density of 1.0579 g/mL and is 11.50% HCl (w/w)?