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3. A complex of chromium (Cr) was treated with H,SO, and HNO, then converted to dichromate ion Cr,0,2. The sample was then titrated with 0.112 N FeSO, and found that 24.5 mL of FeSO, was required to change the indicator color. Calculate the mass of Cr in the complex sample. [molar mass of Cr = 52.0 g/mol] 3 27 %3D

3. A complex of chromium (Cr) was treated with H,SO, and HNO, then converted to dichromate ion Cr,0,2. The sample was then titrated with 0.112 N FeSO, and found that 24.5 mL of FeSO, was required to change the indicator color. Calculate the mass of Cr in the complex sample. [molar mass of Cr = 52.0 g/mol] 3 27 %3D

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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3. A complex of chromium (Cr) was treated with H,SO, and HNO, then converted to dichromate ion Cr,0,2. The sample was then titrated with 0.112 N FeSO, and found that 24.5 mL of FeSO, was required to change the indicator color. Calculate the mass of Cr in the complex sample. [molar mass of Cr = 52.0 g/mol] 3 27 %3D
Transcribed Image Text:3. A complex of chromium (Cr) was treated with H,SO, and HNO, then converted to dichromate ion Cr,0,2. The sample was then titrated with 0.112 N FeSO, and found that 24.5 mL of FeSO, was required to change the indicator color. Calculate the mass of Cr in the complex sample. [molar mass of Cr = 52.0 g/mol] 3 27 %3D
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