Consider the following data on some weak acids and weak bases: acid base
Ka name formula kb name formula
6.8x10-4 hydrofluoric acid HF 1.7x10-9 pyridine C5H5N
1.8x10-5 acetic acid HCH3CO2 6.4X10-4 ethylamine C2H5NH2
Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on.
Solutions
0.1M KF
0.1M KCl
0.1M C5H5NHBr
0.1M C2H5NH3Cl

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.