Calculating Equilibrium Concentrations

AP Chemistry· difficulty 4/5

A common acceptance criterion for the small-x approximation is

  • A

    x = 0

  • B

    x < 50%

  • C

    x < 5% of [initial reactant]

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  • D

    x > 5%

Explanation

If x is < 5% of initial concentration, the approximation usually holds.

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