What is the coefficient of Fe 3+ when the followingequation is correctly balance

Question

What is the coefficient of Fe3+ when the followingequation is correctly balanced? CN- + Fe3+ = CNO- +Fe2+ a)1 b)2 c)3 d)4 I know how to balance an acid redox solution, but have neverdone a basic solution. What is the coefficient of Fe3+ when the followingequation is correctly balanced? CN- + Fe3+ = CNO- +Fe2+ a)1 b)2 c)3 d)4 I know how to balance an acid redox solution, but have neverdone a basic solution. a)1 b)2 c)3 d)4 I know how to balance an acid redox solution, but have neverdone a basic solution.

Explanation / Answer

Balancing a basic solution is the exact same as balancing an acidsolution except it adds one last step on the end: For EACH H+ inthe final reaction, you add an OH- molecule on BOTH sides. In thiscase the final reaction is... H2O + CN- + 2Fe3+ CNO- + 2H+ + 2Fe2+ Since we have 2 H+ atoms, we will add 2 OH- molecules to bothsides. 2OH- + H2O +CN- + 2Fe3+ CNO- +2H+ + 2Fe2+ + 2OH- We can further simplify by adding the Hydrogen and the OH- to makewater on the right side. 2OH- + H2O + CN- +2Fe3+ CNO- + 2Fe2+ +2H2O Then, we can cancel out the water molecules on both side down tojust one on the right side. 2OH- + CN- + 2Fe3+ CNO- + 2Fe2+ + H2O and that is our final equation. And to answer your question, the coefficient is 2. Hope that helps! Let me know if I made a mistake.

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