Unit mass of nacl and cacl2
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Answer: Atomic mass of Na = 23 g/mol
Atomic mass of Cl=35.5 g/mol
Formula unit mass of Nacl: 23 + 35.5 = 58.5 g/mol
Atomic mass of CaCl2 = 40 g/mol
Atomic mass of Cl= 35.5
Formula unit mass of CaCl2: 40 + 35.5 x 2 = 40 + 70 = 110 g/mol
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