(a) Identify the species that was reduced in the titration reaction. Justify your answer in terms of oxidation numbers. (c) Given that the concentration of KMnO4(aq) was 0.0235M, calculate the number of moles of MnO4− ions that completely reacted with the H2C2O4.d) The student proposes to perform another titration using a 0.139g sample of H2C2O4, but this time using 0.00143MKMnO4(aq) in the buret. Would this titrant concentration be a reasonable choice to use if the student followed the same procedure and used the same equipment as before? Justify your respons 6н (аg) + 2 МnOд (ад) + 5 НгС04(ад)→ 10 CO2 (9) + 8 H20 (1) + 2 Mn²+(ag)A student dissolved a 0.139 g sample of oxalic acid, H2C2O4, in water in an Erlenmeyer flask. Then thestudent titrated the H2C204 solution in the flask with a solution of KMN04, which has a dark purplecolor. The balanced chemical equation for the reaction that occurred during the titration is shown above.(a) Identify the species that was reduced in the titration reaction. Justify your answer in terms ofoxidation numbers. (b) The student used a 50.0 mL buret to add theKMNO4(aq) to the H2C2O4(aq) until a faint lavendercolor was observed in the flask, an indication that the endpoint of the titration had been reached. The initial and finalvolume readings of the solution in the buret are shownbelow. Write down the initial reading and the final readingand use them to determine the volume of KMNO4(aq)that was added during the titration.InitialFinal10102030303050แปนแป็น

The species whose oxidation number decreases on being titrated is the oxidizing agent and it is…

Answered: 6н (аg) + 2 МnOд (ад) + 5 НгС04(ад) →…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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(a) Identify the species that was reduced in the titration reaction. Justify your answer in terms of oxidation numbers.

(c) Given that the concentration of KMnO4(aq) was 0.0235M, calculate the number of moles of MnO4− ions that completely reacted with the H2C2O4.

d) The student proposes to perform another titration using a 0.139g sample of H2C2O4, but this time using 0.00143MKMnO4(aq) in the buret. Would this titrant concentration be a reasonable choice to use if the student followed the same procedure and used the same equipment as before? Justify your respons

6н (аg) + 2 МnOд (ад) + 5 НгС04(ад)
→ 10 CO2 (9) + 8 H20 (1) + 2 Mn²+
(ag)
A student dissolved a 0.139 g sample of oxalic acid, H2C2O4, in water in an Erlenmeyer flask. Then the
student titrated the H2C204 solution in the flask with a solution of KMN04, which has a dark purple
color. The balanced chemical equation for the reaction that occurred during the titration is shown above.
(a) Identify the species that was reduced in the titration reaction. Justify your answer in terms of
oxidation numbers.

(b) The student used a 50.0 mL buret to add the
KMNO4(aq) to the H2C2O4(aq) until a faint lavender
color was observed in the flask, an indication that the end
point of the titration had been reached. The initial and final
volume readings of the solution in the buret are shown
below. Write down the initial reading and the final reading
and use them to determine the volume of KMNO4(aq)
that was added during the titration.
Initial
Final
10
10
20
30
30
30
50
แปนแป็น

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