8. the following question is seen in your lab manual under pre-lab exercise. you will prepare two acidic buffer solutions (hc, h,o,/ nac, h0) of the same ph (ph-4), but different concentrations of the components, use the henderson-hasselbalch equation to perform the following calculations the k, of acetic acid is 1.8 x 10%. review your calculations with your instructor before preparing the buffer solutions buffer a: calculate the mass of solid sodium acetate, nac h, o required to mix with 100.0 ml of 0.im acetic acid, hc, h,0, to prepare a ph 4 buffer. record the mass in your data table. buffer b: calculate the mass of solid sodium acetate, nac2h, o required to mix with 100.0 ml of 1.0m acetic acid, hc2h o to prepare a ph 4 buffer. record the mass in your data table.

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

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.

c. is the answer

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answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;