Quantitative redox reaction analysis GCE Advanced Level REDOX Volumetric Analysis Titration Revision Questions: EQUATION HELP

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ORIGINAL REDOX TITRATION QUESTIONS 

ANSWERS and WORKING

   REDOX REACTION THEORY NOTES

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and also acid–base and other non–redox titration Questions

Qualitative Analysis

QUIZ on oxidation state

Studying Constructing full inorganic redox equations from half–equations and Redox titrations first HELPS!

Needed for Questions 1/4/9/11/13/15/16/20/21

MnO₄^–_(aq) + 8H⁺_(aq)  + 5Fe²⁺_(aq) ===> Mn²⁺_(aq) + 5Fe³⁺_(aq) + 4H₂O_(l)

Needed for Questions 2/14/17/18

2S₂O₃^2–_(aq)  +  I_2(aq)  ===>  S₄O₆^2–_(aq) + 2I^–_(aq)

Needed for Questions 3/5

Cr₂O₇^2–_(aq) + 14H⁺_(aq) + 6Fe²⁺_(aq) ===> 2Cr³⁺_(aq) + 6Fe³⁺_(aq) + 7H₂O_(l)

Needed for Questions 6/7/10/13

2MnO₄^–_(aq) + 16H⁺_(aq)  + 5C₂O₄^2–_(aq) ===> 2Mn²⁺_(aq)  + 8H₂O_(l) + 10CO_2(g)

or  2MnO₄^–_(aq) + 6H⁺_(aq)  + 5H₂C₂O_4(aq) ===> 2Mn²⁺_(aq)  + 8H₂O_(l) + 10CO_2(g)

Needed for Question 8

2MnO₄^–_(aq) + 6H⁺_(aq)  + 5H₂O_2(aq)  ===> 2Mn²⁺_(aq) + 8H₂O_(l) + 5O_2(g) 

Needed for Question 12

2MnO₄^–_(aq) + 6H⁺_(aq)  + 5NO₂^–_(aq) ===> Mn²⁺_(aq) + 5NO₃^–_(aq) +  3H₂O_(l)

Needed for Question 14

IO₃^–_(aq) + 5I^–_(aq) + 6H⁺_(aq) ===> 3I_2(aq) + 3H₂O_(l)

Needed for Question 18

Cr₂O₇^2–_(aq) + 14H⁺_(aq) + 6I^–_(aq) ===> 2Cr³⁺_(aq) + 3I_2(aq) + 7H₂O_(l)

ORIGINAL REDOX TITRATION QUESTIONS

  ANSWERS and FULL WORKING

I DO MY BEST TO CHECK MY CALCULATIONS, as you yourself should do,  BUT I AM HUMAN! AND IF YOU THINK THERE IS A 'TYPO' or CALCULATION ERROR PLEASE EMAIL ME ASAP TO SORT IT OUT!

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