1.45-g sample of oxalic acid, H2C2O4, is dissolved in distilled water to make 50.00 mL of aqueous solution. This solution is called “Solution A”. The 5.00 mL of Solution A is added to 20.00 mL of distilled water to make “Solution B”. H2C2O4(aq) reacts with MnO4 – (aq) to produce CO2(g) and Mn2+(aq). When 19.41 mL of H2C2O4(aq) (Solution B) is mixed with 21.59 mL of 0.0400 M MnO4 – (aq), the mass of CO2(g) obtained is 0.0990 g. (a) In this chemical reaction, which substance is the oxidizing agent? Why? (b) Calculate the percentage yield of CO2(g). (c) Determine the molarity of the excess reactant at the end of the chemical reaction.
1.45-g sample of oxalic acid, H2C2O4, is dissolved in distilled water to make 50.00 mL of aqueous solution. This solution is called “Solution A”. The 5.00 mL of Solution A is added to 20.00 mL of distilled water to make “Solution B”. H2C2O4(aq) reacts with MnO4 – (aq) to produce CO2(g) and Mn2+(aq). When 19.41 mL of H2C2O4(aq) (Solution B) is mixed with 21.59 mL of 0.0400 M MnO4 – (aq), the mass of CO2(g) obtained is 0.0990 g. (a) In this chemical reaction, which substance is the oxidizing agent? Why? (b) Calculate the percentage yield of CO2(g). (c) Determine the molarity of the excess reactant at the end of the chemical reaction.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
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
Section: Chapter Questions
Problem 135SCQ: Two beakers sit on a balance; the total mass is 167.170 g. One beaker contains a solution of KI; the...
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1.45-g sample of oxalic acid, H2C2O4, is dissolved in distilled water to make 50.00 mL of
aqueous solution. This solution is called “Solution A”.
The 5.00 mL of Solution A is added to 20.00 mL of distilled water to make “Solution B”.
H2C2O4(aq) reacts with MnO4
–
(aq) to produce CO2(g) and Mn2+(aq).
When 19.41 mL of H2C2O4(aq) (Solution B) is mixed with 21.59 mL of 0.0400 M MnO4
–
(aq), the
mass of CO2(g) obtained is 0.0990 g.
(a) In this
(b) Calculate the percentage yield of CO2(g).
(c) Determine the molarity of the excess reactant at the end of the chemical reaction.
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