Initial number of moles

  • Chemistry
  • Thread starter anthonych414
  • Start date
  • #1

Homework Statement



We are given a reaction: H2O2 + 2I- + 2H+ → 2H2O + I2 and are asked to find the initial number of moles of each reactant.

V=10mL and C=0.2 mol/L for potassium iodide in the solution.
V=5mL and C=0.5 mol/L for sulfuric acid in the solution.
V=5mL and C=0.02 mol/L for hydrogen peroxide in the solution.


Homework Equations



n=CxV where n is the number of moles, C is the concentration, and V is the volume.

The Attempt at a Solution



I know we need to use the equation stated above but should we multiply by the coefficient or not?
 

Answers and Replies

  • #2
Borek
Mentor
28,816
3,318
You mean stoichiometric coefficients? No, just calculate concentration as if you were not knowing what the solution will be used for.
 

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