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22.50 mL of the Fe²+ solution required 12.50 mL of 0.255 M K₂Cr₂O, to reach the end point. Calculate the concentration of the Fe²+ solution. 0.127 [Fe²+] = Incorrect M

22.50 mL of the Fe²+ solution required 12.50 mL of 0.255 M K₂Cr₂O, to reach the end point. Calculate the concentration of the Fe²+ solution. 0.127 [Fe²+] = Incorrect M

Chemistry
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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Seeking an answer for the second part, [Fe2+].

A Fe²+ solution is titrated with a K₂Cr₂O solution according to the unbalanced reaction below. Cr₂O² (aq) + Fe²+ (aq) Cr³+ (aq) + Fe³+ (aq) Select net ionic equation that shows the above reaction balanced in acidic solution. Cr₂O² (aq) + 6 Fe²+ (aq) + 14 H+ (aq) - 2 Cr₂O²¯(aq) + Fe²+ (aq) → 4 Cr³ + (aq) Cr₂O²¯(aq) + Fe²+ (aq) + 14 H+ (aq) 2 Cr³+ (aq) + 6 Fe³+ (aq) + 7 H₂O(1) + Fe³+ (aq) + 70₂(g) 2 Cr³+ (aq) + Fe³+ (aq) + 7 H₂O(1) Cr₂O²¯(aq) + 6 Fe²+ (aq) + 7 H₂O(1) → 2 Cr³ + (aq) + 6 Fe³ + (aq) + 14 OH¯(aq) 22.50 mL of the Fe²+ solution required 12.50 mL of 0.255 M K₂Cr₂O, to reach the end point. Calculate the concentration of the Fe²+ solution. 0.127 [Fe²+] = Incorrect M
Transcribed Image Text:A Fe²+ solution is titrated with a K₂Cr₂O solution according to the unbalanced reaction below. Cr₂O² (aq) + Fe²+ (aq) Cr³+ (aq) + Fe³+ (aq) Select net ionic equation that shows the above reaction balanced in acidic solution. Cr₂O² (aq) + 6 Fe²+ (aq) + 14 H+ (aq) - 2 Cr₂O²¯(aq) + Fe²+ (aq) → 4 Cr³ + (aq) Cr₂O²¯(aq) + Fe²+ (aq) + 14 H+ (aq) 2 Cr³+ (aq) + 6 Fe³+ (aq) + 7 H₂O(1) + Fe³+ (aq) + 70₂(g) 2 Cr³+ (aq) + Fe³+ (aq) + 7 H₂O(1) Cr₂O²¯(aq) + 6 Fe²+ (aq) + 7 H₂O(1) → 2 Cr³ + (aq) + 6 Fe³ + (aq) + 14 OH¯(aq) 22.50 mL of the Fe²+ solution required 12.50 mL of 0.255 M K₂Cr₂O, to reach the end point. Calculate the concentration of the Fe²+ solution. 0.127 [Fe²+] = Incorrect M
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