(Solved): While the image above shows you only 3 isotopes of chlorine, there are in fact 24 different chlorin ...

While the image above shows you only 3 isotopes of chlorine, there are in fact 24 different chlorine isotopes with mass numbers ranging from \( \mathrm{Cl}-28 \) all the way up to \( \mathrm{Cl}-51 \). Of these 24 isotopes however, there are only 2 major isotopes and together they account for more than \( 99.9 \% \) of chlorine's natural abundance. Use the 2 principal isotopes of chlorine from the image to calculate the average atomic mass of chlorine. Remember to give your answer to 5 significant figures.