Molar Mass of Nonadecane (C19H40)
Molar Mass of Nonadecane is helpful for yield calculations and formula checks in carbon-chain reaction questions. Molar Mass of C₁₉H₄₀ is 268.53 g/mol, based on 2 element types, with C 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 Nonadecane is:
268.53 g/mol
Molar Mass of C₁₉H₄₀ equals 268.53 g/mol, so 268.53 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Carbon (C) | 19 | 12.01 | 19 x 12.01 | 228.21 g/mol |
| Hydrogen (H) | 40 | 1.01 | 40 x 1.01 | 40.32 g/mol |
Final molar mass 228.210 + 40.320 | 268.53 g/mol | |||
Computing Molar Mass of Nonadecane Step by Step
Molar Mass of Nonadecane: Step-by-Step Calculation
1. Identify Element Counts
Read C19H40 and list how many atoms of each element are present:
- 19 atoms of Carbon (C)
- 40 atoms of Hydrogen (H)
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
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Carbon (C): 19 x 12.011 = 228.210 g/mol
- Hydrogen (H): 40 x 1.008 = 40.320 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (19 x 12.011 + 40 x 1.008)
Molar Mass = 228.210 + 40.320
Molar Mass = 268.530 g/mol
Final rounded value shown on this page: 268.53 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Carbon (C) | 19 | 12.011 | 19 x 12.011 | = 228.210 |
| Hydrogen (H) | 40 | 1.008 | 40 x 1.008 | = 40.320 |
Final molar mass 228.210 + 40.320 | = 268.530 | |||
Easy Way to Remember
Easy way to remember Molar Mass of Nonadecane
- Molar Mass of Nonadecane: 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 |
|---|---|
| Combustion | C₁₉H₄₀ + ₂₉O₂ → ₁₉CO₂ + ₂₀H₂O |
| Hydrogenation | C₁₉H₄₀ + H₂ → C₁₉H₄₂ |
Do You Know?
– Nonadecane contains 2 element types: C, H.
– C contributes the largest share of this compound's total molar mass.
– In C₁₉H₄₀, H appears with the highest atom count.
– Its molar mass is 268.53 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Nonadecane is combustion (C₁₉H₄₀ + ₂₉O₂ → ₁₉CO₂ + ₂₀H₂O).
Why This Compound Matters
Nonadecane 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 Benzene (C6H6) and Toluene (C7H8).
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 C₁₉H₄₀ and miscounting atoms.
- Rounding atomic masses too early before finishing all multiplication steps.
- Mixing up C element contribution with total molar mass.
- Reporting a value without units; final answer should be in g/mol for Nonadecane.
Quick Revision
Formula: C19H40
Molar Mass: 268.53 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
C19H40 contains Carbon (C) (19), Hydrogen (H) (40). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Nonadecane and Molar Mass of C₁₉H₄₀ are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.