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Calculate the molar mass of KCI 72 74.55g/mol 39.10 35.45

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To calculate the molar mass of KCl (potassium chloride), we need to add the atomic masses of potassium (K) and chlorine (Cl).The atomic mass of potassium (K) is approximately 39.10 g/mol, and the atomic mass of chlorine (Cl) is approximately 35.45 g/mol.So, the molar mass of KCl is:Molar mass of KCl = Atomic mass of K + Atomic mass of ClMolar mass of KCl = 39.10 g/mol + 35.45 g/molMolar mass of KCl = 74.55 g/molTherefore, the molar mass of KCl is 74.55 g/mol.