guided notes - reaction rates\nassignment 22: calculating molar mass\n1. find the molar mass of cacl₂ (use…
guided notes - reaction rates\nassignment 22: calculating molar mass\n1. find the molar mass of cacl₂ (use the atomic mass on the periodic table):\n|atomic mass of ca|\n|atomic mass of cl|\n|molar mass of cacl₂|\n2. find the molar mass of c₆h₁₂o₆ (use the atomic mass on the periodic table):\n|atomic mass of c|\n|atomic mass of h|\n|atomic mass of o|\n|molar mass of c₆h₁₂o₆|\n3. find the molar mass of c₁₂h₂₂o₁₁ (use the atomic mass on the periodic table):\n|atomic mass of c|\n|atomic mass of h|\n|atomic mass of o|\n|molar mass of c₁₂h₂₂o₁₁|\ncomplete reaction rates lab
Answer
Explanation:
Step1: Determine atomic masses from periodic table
Atomic mass of Ca: 40.08 g/mol, Atomic mass of Cl: 35.45 g/mol
Step2: Calculate molar mass of CaCl₂
The formula for CaCl₂ has 1 Ca and 2 Cl. Molar mass of CaCl₂ = 40.08+2×35.45 = 40.08 + 70.9 = 110.98 g/mol
Step3: Determine atomic masses for C₆H₁₂O₆
Atomic mass of C: 12.01 g/mol, Atomic mass of H: 1.01 g/mol, Atomic mass of O: 16.00 g/mol
Step4: Calculate molar mass of C₆H₁₂O₆
Molar mass of C₆H₁₂O₆=6×12.01 + 12×1.01+6×16.00 = 72.06+12.12 + 96.00=180.18 g/mol
Step5: Determine atomic masses for C₁₂H₂₂O₁₁
Atomic mass of C: 12.01 g/mol, Atomic mass of H: 1.01 g/mol, Atomic mass of O: 16.00 g/mol
Step6: Calculate molar mass of C₁₂H₂₂O₁₁
Molar mass of C₁₂H₂₂O₁₁=12×12.01+22×1.01 + 11×16.00=144.12+22.22+176.00 = 342.34 g/mol
Answer:
| Compound | Atomic Mass of Ca | Atomic Mass of Cl | Molar Mass of CaCl₂ |
|---|---|---|---|
| CaCl₂ | 40.08 g/mol | 35.45 g/mol | 110.98 g/mol |
| C₆H₁₂O₆ | Atomic Mass of C: 12.01 g/mol | Atomic Mass of H: 1.01 g/mol | Atomic Mass of O: 16.00 g/mol |
| C₁₂H₂₂O₁₁ | Atomic Mass of C: 12.01 g/mol | Atomic Mass of H: 1.01 g/mol | Atomic Mass of O: 16.00 g/mol |