Calculate the ph of 100 ml of a buffer solution containing 0.05 m benzoic acid (c6h5co2h; ka = 6.4 x 10-5) and 0.05 m sodium benzoate (nac6h5co2)

How much energy moves onto the next level, in an energy pyramid

What is the relation between concentration of reactants and the rate of chemical reaction?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present