Which of the following scenario will lead into LOSS of yield? a. Use of a filter paper with a smaller pore size b. Addition of excess H2SO4 c. Prolonged mixing while heating Cu(OH)2. d. Dcanting liquid from CuO suspension without filter paper In the absence of sodium hydroxide, which of the following substances can you use as the titrant to proceed with the experiment? a. Ammonia b. Potassium hydrogen phthalate c. Potassium hydroxide d. None of the above In the case of over-titration, what should be done to the sample? Add acid to revert the color back to faint pink or colorless b. Discard and prepare another sample c. Add more phenolphthalein indicator а.

Which of the following scenario will lead into LOSS of yield? a. Use of a filter paper with a smaller pore size b. Addition of excess H2SO4 c. Prolonged mixing while heating Cu(OH)2. d. Dcanting liquid from CuO suspension without filter paper In the absence of sodium hydroxide, which of the following substances can you use as the titrant to proceed with the experiment? a. Ammonia b. Potassium hydrogen phthalate c. Potassium hydroxide d. None of the above In the case of over-titration, what should be done to the sample? Add acid to revert the color back to faint pink or colorless b. Discard and prepare another sample c. Add more phenolphthalein indicator а.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 3.1ACP

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