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-Chlorine-35 has a mass of 34.97 amu, and makes up 75.53 % of all chlorine atoms, and Chlorine-37 has a mass of 36.95 amu, and makes up the remaining 24.47 %, so that the total Cl-35 plus Cl-37 sums up 100 %. Determine the atomic mass of the chlorine atom (atomic number 17).

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