Acetic acid and water react to form hydronium cation and acetate anion, like this: HCH3CO2(aq) + H2O(l) →H3O+ (aq) + CH3CO2-(aq)

Imagine 226. mmol of CH3CO2- are added to a flask containing a mixture of HCH3CO2, H2O, H3O + and CH3CO2- at equilibrium, and then answer the following questions.

a. What is the rate of the reverse reaction before any CH3CO2- has been added to the flask?
b. What is the rate of the reverse reaction just after the CH3CO2- has been added to the flask?
c. What is the rate of the reverse reaction when the system has again reached equilibrium?
d. How much more CH3CO2- is in the flask when the system has again reached equilibrium?

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.