The element chlorine occurs in nature as a mixture of two isotopes. Chlorine-35 has an atomic mass of 34.969 amu and makes up 75.77% of chlorine atoms.
Chlorine-37 atoms make up the remaining 24.23% of all chlorine. The average
atomic mass of chlorine from the periodic table is 35.4527 amu. Calculate the
atomic mass of Cl-37 atoms.