Combustion analysis of a 6.3267 g sample of an unknown organic compound produces 17.167 g of CO2 and 3.5136 g of H20. The molar mass of the compound is 243.28 g/mol.

points

explanation:

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.