Identify the substance that has formula mass of 133.5 amu a. MgCI2 b. S2CI2 c. BCI3 d. AICI?
回答 (1)
2016-06-21 6:26 pm
Formula mass of MgCl₂ = (24.3 + 35.5×2) amu = 59.8 amu
Formula mass of S₂Cl₂ = (32.1 + 35.5×2) amu = 103.1 amu
Formula mass of BCl₃ = (10.8 + 35.5×3) amu = 117.3 amu
Formula mass of AlCl₃ = (27.0 + 35.5×3) amu = 133.5 amu
...... The answer is : d. AlCl₃
Formula mass of S₂Cl₂ = (32.1 + 35.5×2) amu = 103.1 amu
Formula mass of BCl₃ = (10.8 + 35.5×3) amu = 117.3 amu
Formula mass of AlCl₃ = (27.0 + 35.5×3) amu = 133.5 amu
...... The answer is : d. AlCl₃
收錄日期: 2021-04-18 15:09:13
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