Molar Mass of Bromoethane (C2H5Br)
Molar Mass of Bromoethane is helpful for yield calculations and formula checks in carbon-chain reaction questions. Molar Mass of C₂H₅Br is 108.97 g/mol, based on 3 element types, with Br contributing the largest share.
For fast checks, use the molar mass calculator, verify element values in the periodic table, or explore more molar mass.
Molar Mass of Bromoethane is:
108.97 g/mol
Molar Mass of C₂H₅Br equals 108.97 g/mol, so 108.97 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Carbon (C) | 2 | 12.01 | 2 x 12.01 | 24.02 g/mol |
| Hydrogen (H) | 5 | 1.01 | 5 x 1.01 | 5.04 g/mol |
| Bromine (Br) | 1 | 79.90 | 1 x 79.90 | 79.90 g/mol |
Final molar mass 24.020 + 5.040 + 79.900 | 108.97 g/mol | |||
Computing Molar Mass of Bromoethane Step by Step
Molar Mass of Bromoethane: Step-by-Step Calculation
1. Identify Element Counts
Read C2H5Br and list how many atoms of each element are present:
- 2 atoms of Carbon (C)
- 5 atoms of Hydrogen (H)
- 1 atom of Bromine (Br)
2. Determine Atomic Masses
Look up each element mass from the periodic table:
- Carbon (C) ~= 12.011 g/mol
- Hydrogen (H) ~= 1.008 g/mol
- Bromine (Br) ~= 79.904 g/mol
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Carbon (C): 2 x 12.011 = 24.020 g/mol
- Hydrogen (H): 5 x 1.008 = 5.040 g/mol
- Bromine (Br): 1 x 79.904 = 79.900 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (2 x 12.011 + 5 x 1.008 + 1 x 79.904)
Molar Mass = 24.020 + 5.040 + 79.900
Molar Mass = 108.970 g/mol
Final rounded value shown on this page: 108.97 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Carbon (C) | 2 | 12.011 | 2 x 12.011 | = 24.020 |
| Hydrogen (H) | 5 | 1.008 | 5 x 1.008 | = 5.040 |
| Bromine (Br) | 1 | 79.904 | 1 x 79.904 | = 79.900 |
Final molar mass 24.020 + 5.040 + 79.900 | = 108.970 | |||
Easy Way to Remember
Easy way to remember Molar Mass of Bromoethane
- Molar Mass of Bromoethane: count atoms, multiply masses, and add totals.
- Write each element in a table so you do not miss subscripts.
- Keep 2-3 decimals during steps, then round only at the end.
Sample Reactions
| Type | Reaction |
|---|---|
| Synthesis | ₂H₂ + O₂ → ₂H₂O |
| Combustion | CH₄ + ₂O₂ → CO₂ + ₂H₂O |
Do You Know?
– Bromoethane contains 3 element types: C, H, Br.
– Br contributes the largest share of this compound's total molar mass.
– In C₂H₅Br, H appears with the highest atom count.
– Its molar mass is 108.97 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Bromoethane is synthesis (₂H₂ + O₂ → ₂H₂O).
Why This Compound Matters
Bromoethane matters in organic chemistry, especially for fuel, solvent, or carbon-chain analysis.
Its formula pattern helps students practice molecular composition and yield calculation methods.
Similar calculations can be compared with Bromomethane (C1H3Br) and Bromopropane (C3H7Br).
Where This Is Used
- Competitive exams and school chemistry tests.
- Lab work when preparing measured solutions.
- Real-world manufacturing and quality checks.
Common Mistakes When Calculating This
- Skipping subscripts in C₂H₅Br and miscounting atoms.
- Rounding atomic masses too early before finishing all multiplication steps.
- Mixing up Br element contribution with total molar mass.
- Reporting a value without units; final answer should be in g/mol for Bromoethane.
Quick Revision
Formula: C2H5Br
Molar Mass: 108.97 g/mol
Key takeaway: count atoms accurately, multiply by atomic masses, and sum only at the end.
Before a test, molar mass calculations helps you review more formulas without rebuilding each table manually.
Formula Explanation
C2H5Br contains Carbon (C) (2), Hydrogen (H) (5), Bromine (Br) (1). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Bromoethane and Molar Mass of C₂H₅Br are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.