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The equilibrium constant (Ka) for Reaction 3 at 25 °C is 1.80 × 10−4 mol dm−3. Calculate the equilibrium concentration of hydrogen ions if the concentration of formic acid at equilibrium is 0.00500 mol dm−3. (Show all of your working and give your answer to three significant figures, in correct scientific notation.)

  • science -

    Oh yeah! Those values apply to this equation:

    HCOOH(aq) <-----> H^+ (aq)+ HCOO^-(aq)

  • science -

    whats the answer

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