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Biology and Chemistry Homework Help
Calculate Mass Percent of Fe in Ore Sample
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[QUOTE="srana, post: 4493099, member: 487069"] An iron ore sample weighing 0.9292g is dissolved in HCl(aq), and the iron is obtained as Fe2+(aq). This solution is then titrated with 30.86mL of 5.027×10−2M K2Cr2O7(aq). 6Fe2++14H++Cr2O2−7→6Fe3++2Cr3++7H2O So how would i go about finding the mass percent of Fe in the ore sample? I tried multiplying 30.86ml with the 5.027×10−2M K2Cr2O7(aq) to find the mol of K2Cr2O7 but I have no idea what i am doing with that..Please respond as soon as you can! thanks [/QUOTE]
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Calculate Mass Percent of Fe in Ore Sample
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