Chemistry How to calculate number of moles of H2O2 oxidized

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SUMMARY

The discussion focuses on calculating the number of moles of hydrogen peroxide (H2O2) oxidized by potassium permanganate (KMnO4) in an acidic solution. The balanced chemical equation is 2MnO4- + 6H+ + 5H2O2 -> 2Mn2+ + 5O2 + 8H2O, indicating that 5 moles of H2O2 are oxidized for every 2 moles of KMnO4. Given 0.0045 moles of KMnO4, the calculation shows that 0.01125 moles of H2O2 are oxidized. This conclusion is reached through direct proportionality based on the stoichiometry of the balanced equation.

PREREQUISITES
  • Understanding of stoichiometry in chemical reactions
  • Familiarity with balancing chemical equations
  • Knowledge of moles and molar relationships
  • Basic concepts of redox reactions in acidic solutions
NEXT STEPS
  • Study the concept of stoichiometric coefficients in chemical equations
  • Learn about redox reactions and their balancing techniques
  • Explore the properties and reactions of potassium permanganate in acidic solutions
  • Review calculations involving moles and molar mass in chemical reactions
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Chemistry students, educators, and anyone involved in chemical analysis or reaction stoichiometry will benefit from this discussion.

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Homework Statement


How many moles of hydrogen peroxide will be oxidized by 0.0045 moles of potassium permanganate in acidic solution?

I am unable to think of how you get started?

Homework Equations


[/B]
n - m/mm

The Attempt at a Solution



I've balanced the equation for an acidic solution: 2MnO4- + 6H+ + 5H2O2 -> 2Mn2+ + 5O2 + 8H2O

I know, since it's balanced, the H202 has 5 moles per the 2 for MnO4-.

I can't think of how to even get this started.
 
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How many moles of MnO4- do you have?

If 5 moles of H2O2 are oxidized per 2 moles of MnO4- (I have NOT checked your arithmetic) then how many moles of H2O2 are oxidized by that many moles of MnO4-?
 
So, I don't know if this is right, but .0045 is 9/4000th of 2, so then 9/4000*5 is the number of moles of H2O2 oxidized by .0045 moles of 2MnO4-.

So, the answer should be .01125 moles?

I don't know if that's right.
 
Looks OK.
 

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