A buffer is prepared by adding 300.0 mL of 2.0 M NaOH to 500.0 mL of 2.0 M CH3COOH (Ka = 1.8 × 10–5). What is the pH of this buffer? 0.10 mol of HCl is now added to this buffer (assume no volume change due to the addition of HCl), what is the pH now? Now you add 0.120 mol of NaOH to the original buffer solution (before the addition of HCl) (again assume no change in volume due to the addition of NaOH)

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

answer///carbon;