What is the pH of a buffer solution that contains 0.245 M weak acid and 0.450 M of the conjugate base

it's all four options.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.