In the laboratory a student measures the percent ionization of a 0.483 M solution of acetylsalicylic acid (aspirin) , HC9H7O4, to be 2.57 %. Calculate value of Ka from this experimental data. Ka.

b.false that your answer

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.