KINETICS AND EQUILIBRIUM Predicting relative forward and reverse rates of reacti

Question

KINETICS AND EQUILIBRIUM Predicting relative forward and reverse rates of reaction.. Er Acetic acid and water react to form hydronium cation and acetate anion, like this: + HICH 3CO2(aq)+ H2O(l)-, H 30 (aq)+ CH 3CO2 (aq) Imagine 149. mmol of CH,C0, are removed from a flask containing a mixture of HCH,CO, H,0, H,O and CH,CO, at equilbrium, and then answer the following questions. Zero. What is the rate of the reverse reaction before any CHyC02 has been removed from the flask? Greater than zero, but less than the rate of the forward reaction Greater than zero, and equal to the rate of the forward reaction Greater than zero, and greater than the rate of the forward reaction Zero. Greater than zero, but less than the rate of the forward reaction. Greater than zero, and equal to the rate of the forward reaction Greater than zero, and greater than the rate of the forward reaction Zero. Greater than zero, but less than the rate of the forward reaction Greater than zero, and equal to the rate of the forward reaction Greater than zero, and greater than the rate of the forward reaction What is the rate of the reverse reaction just after the CH,CO2 has been removed from the flask? What is the rate of the reverse reaction when the system has again reached equilibrium None How much less CH CO" is in the Some, but less than 149. mmol lask when the system has again reached equilibrium? 149. mmoi More than 149 mmol Explanation Check

Explanation / Answer

Whate is the rate of the reverse reaction before any CH3CO2- has been removed from the flask Greater than zero, and equal to tha rate of forward reaction whate is the rate of reverse reaction just after the CH3CO2- has been removed from the flask Greater than Zero, but less than the rate of forward reaction whate is the rate of the reverse reaction when the system has again reached the equillibium Greater than Zero, and equal to the rate of forward reaction How much less CH3CO2- is in the flask when the system has again reached equillibrium some, but less than 149mmol

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