Acetic acid and water react to form hydronium cation and acetate anion, like thi

Question

Acetic acid and water react to form hydronium cation and acetate anion, like this HCH,CO2(aq)+H2O(,) H30 (aq)+CH,CO2 (aq) Imagine 185. mmol of HCH3CO2 are removed from a flask containing a mixture of HCH3CO2, H20, H30 and CH3CO2 at equilibrium, and then answer the following questions Zero. Greater than zero, but less than the rate of the reverse reaction Greater than zero, and equal to the rate of the reverse reaction. Greater than zero, and greater than the rate of the reverse reaction Zero. Greater than zero, but less than the rate of the reverse reaction Greater than zero, and equal to the rate of the reverse reaction. Greater than zero, and greater than the rate of the reverse reaction Zero. Greater than zero, but less than the rate of the reverse reaction Greater than zero, and equal to the rate of the reverse reaction Greater than zero, and greater than the rate of the reverse reaction None What is the rate of the forward reaction before any HCH3CO2 has been removed from the flask? What is the rate of the forward reaction just after the HCH3CO2 has been removed from the flask? What is the rate of the forward reaction when the system has again reached equilibrium? How much less HCH3CO2 is in theSome, but less than 185. mmol flask when the system has again reached equilibrium? 185. mmol More than 185. mmol.

Explanation / Answer

According to the Le chatelier's principle , the system at equillibrium always tries to maintain its equillibrium , when there is change of reaction conditions , by moving in either forward or reverse reaction.

Ans 1 : Greater than zero , and equal to the rate of reverse reaction

Ans 2 : Greater than zero , but less than the rate of reverse reaction

Ans 3 : Greater than zero , and equal to the rate of reverse reaction

Ans 4 : Some , but less than 185 mmol

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