Chlorine is made up of 75.78% 35cl and 24.22% 37cl.
the atomic mass of 35cl is 34.969 amu . the atomic mass of 37cl is 36.966 amu .
what is the average atomic mass of a sample of chlorine?
34.969 amu
35.453 amu
35.968 amu
36.966 amu
35.453 amu is the correct answer

If 35Cl = 34.969 amu and 37Cl = 36.966 amu

Average atomic mass of the sample of chlorine..;

; [34.969(75.78) + 36.966(24.22)] ÷ 100,where 100 is the total percentage.

; 3545.267 ÷ 100

; Hence the average atomic mass,

35.453 amu

lol for the pointsss

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.