Bromate is a drinking water contaminant that can be formed from bromide during an ozonation process and can subsequently be removed using a biological process. Consider the ozonation process below. Model the ozonation process as a CSTR; bromate formation occurs in this process with a reaction rate constant k=0.2 g/L-min. Write a steady state mass balance on bromate, and calculate Cbromate,2 in g/L.

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.