An iron ore sample weighing 0.9174 g is dissolved in HCl(aq), and the iron is obtained as Fe2+(aq). This solution is then titrated with 34.62 mL of 5.016×10−2 M K2Cr2O7(aq)6Fe2+ + 14H+ + Cr2O2−7 → 6Fe3+ + 2Cr3+ + 7H2O What is the mass percent Fe in the ore sample?
An iron ore sample weighing 0.9174 g is dissolved in HCl(aq), and the iron is obtained as Fe2+(aq). This solution is then titrated with 34.62 mL of 5.016×10−2 M K2Cr2O7(aq)6Fe2+ + 14H+ + Cr2O2−7 → 6Fe3+ + 2Cr3+ + 7H2O What is the mass percent Fe in the ore sample?
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Chapter4: Chemical Reactions
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Problem 4.123QP: A 0.608-g sample of fertilizer contained nitrogen as ammonium sulfate, (NH4)2SO4. It was analyzed...
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An iron ore sample weighing 0.9174 g is dissolved in HCl(aq), and the iron is obtained as Fe2+(aq). This solution is then titrated with 34.62 mL of 5.016×10−2 M K2Cr2O7(aq)
6Fe2+ + 14H+ + Cr2O2−7 → 6Fe3+ + 2Cr3+ + 7H2O
What is the mass percent Fe in the ore sample?
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