Example 1 A sample containing iron is titrated with a 0.025 M potassium dichromate, K₂Cr₂O7, solution after reducing with H3PO4/H₂SO4. The titration required 26.74 mL of K₂Cr₂O7 for 1.45 g of the sample. What is the percent iron in the sample? The balanced half-reaction is shown below.
Example 1 A sample containing iron is titrated with a 0.025 M potassium dichromate, K₂Cr₂O7, solution after reducing with H3PO4/H₂SO4. The titration required 26.74 mL of K₂Cr₂O7 for 1.45 g of the sample. What is the percent iron in the sample? The balanced half-reaction is shown below.
Chapter18: Introduction To Electrochemistry
Section: Chapter Questions
Problem 18.11QAP
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Transcribed Image Text:Example 1
A sample containing iron is titrated with a 0.025 M potassium dichromate, K₂Cr₂O7, solution after reducing
with H₂PO4/H₂SO4. The titration required 26.74 mL of K₂Cr₂O7 for 1.45 g of the sample. What is the percent
iron in the sample? The balanced half-reaction is shown below.
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