acetic acid ionizes in water according to the following equation:

CH3COOH<-->H+ + CH3COO-
if the solution is .766 M acetic acid, what is the concentration of H+?

This follows the same guidelines as the later ones I've done for you.

To find the concentration of H+ in a solution of acetic acid, you need to use the given information about the concentration of acetic acid and the equation for its ionization in water.

The equation for the ionization of acetic acid in water is:
CH3COOH <--> H+ + CH3COO-

From this equation, you can see that one molecule of acetic acid produces one H+ ion and one CH3COO- ion. Therefore, for every one molecule of acetic acid that ionizes, one H+ ion is produced.

Given that the concentration of the acetic acid solution is 0.766 M, this means that there are 0.766 moles of acetic acid per liter of solution.

Since each molecule of acetic acid produces one H+ ion, the concentration of H+ ions is also 0.766 M.

Therefore, the concentration of H+ in the solution is 0.766 M.