A sample of iron ore is dissolved in acid, and the iron ore is converted to Fe2+. The sample is then titrated with 57.30 mL of 0.03240 M MnO, solution. The oxidation-reduction reaction that occurs during titration is as follows: InO (aq) + 5 Fe2* (aq) + 8 H* (aq) Mn2 (aq) + 5 Fe (aq) 4 H20 (1) ow many moles of MnO4 were added to the solution? ect one: a. 1.857 x 103 mol b. 3.240 x 10-3 mol c.1 mol d. 0.0001857 mol e. 0.03240

Chemistry & Chemical Reactivity
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Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability
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A sample of iron ore is dissolved in acid, and the iron ore is converted to Fe2+. The sample is then titrated with 57.30 mL of
0.03240 M MnO4 solution. The oxidation-reduction reaction that occurs during titration is as follows:
MnO4 (aq)
5 Fe2* (aq) + 8 H (aq) -
Mn2 (aq) + 5 Fe (aq) + 4 H20 (1)
How many moles of MnO4 were added to the solution?
Select one:
O a. 1.857 x 103 mol
O b. 3.240 x 10-3 mol
O c1 mol
O d. 0.0001857 mol
O e. 0.03240 mol
Transcribed Image Text:A sample of iron ore is dissolved in acid, and the iron ore is converted to Fe2+. The sample is then titrated with 57.30 mL of 0.03240 M MnO4 solution. The oxidation-reduction reaction that occurs during titration is as follows: MnO4 (aq) 5 Fe2* (aq) + 8 H (aq) - Mn2 (aq) + 5 Fe (aq) + 4 H20 (1) How many moles of MnO4 were added to the solution? Select one: O a. 1.857 x 103 mol O b. 3.240 x 10-3 mol O c1 mol O d. 0.0001857 mol O e. 0.03240 mol
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