1. A solution of HClO4 was standardized by dissolving 0.4008 g of primary-standard-grade HgO in a solution of KBr: HgO(s) + 4Br- + H2O → HgBr42- + 2OH- The liberated OH2 consumed 43.75 mL of the acid. Calculate the molar concentration of the HClO4. 2. A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach the end point in the reaction: CO32- + 2H+ → H2O + CO2 (g) What is the molar concentration of the H2SO4? Using step-by-step process.
1. A solution of HClO4 was standardized by dissolving 0.4008 g of primary-standard-grade HgO in a solution of KBr: HgO(s) + 4Br- + H2O → HgBr42- + 2OH- The liberated OH2 consumed 43.75 mL of the acid. Calculate the molar concentration of the HClO4. 2. A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach the end point in the reaction: CO32- + 2H+ → H2O + CO2 (g) What is the molar concentration of the H2SO4? Using step-by-step process.
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
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 110IL: The amount of oxygen, O2, dissolved in a water sample at 25 C can be determined by titration. The...
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1. A solution of HClO4 was standardized by dissolving 0.4008 g of primary-standard-grade HgO in a solution of KBr:
HgO(s) + 4Br- + H2O → HgBr42- + 2OH-
The liberated OH2 consumed 43.75 mL of the acid. Calculate the molar concentration of the HClO4.
2. A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach the end point in the reaction:
CO32- + 2H+ → H2O + CO2 (g)
What is the molar concentration of the H2SO4?
Using step-by-step process.
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