3. The isotopes of magnesium (and their percent abundance) are Mg-24 (79.0%), Mg-25 (10%), and Mg-26 (11.0%). Calculate the atomic mass of magnesium. NOTE: To one decimal place, the mass of each isotope is equal to the mass number. Thus, the mass of an atom of Mg-24 is 24.0 amu.

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3