Molar Mass of Pentadecanoic Acid (C15H30O2)
Molar Mass of Pentadecanoic Acid is useful when preparing acid solutions and checking neutralization calculations in class and lab. Molar Mass of C₁₅H₃₀O₂ is 242.40 g/mol, based on 3 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 calculations.
Molar Mass of Pentadecanoic Acid is:
242.40 g/mol
Molar Mass of C₁₅H₃₀O₂ equals 242.40 g/mol, so 242.40 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Carbon (C) | 15 | 12.01 | 15 x 12.01 | 180.16 g/mol |
| Hydrogen (H) | 30 | 1.01 | 30 x 1.01 | 30.24 g/mol |
| Oxygen (O) | 2 | 16.00 | 2 x 16.00 | 32.00 g/mol |
Final molar mass 180.160 + 30.240 + 32.000 | 242.40 g/mol | |||
Computing Molar Mass of Pentadecanoic Acid Step by Step
Molar Mass of Pentadecanoic Acid: Step-by-Step Calculation
1. Identify Element Counts
Read C15H30O2 and list how many atoms of each element are present:
- 15 atoms of Carbon (C)
- 30 atoms of Hydrogen (H)
- 2 atoms of Oxygen (O)
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
- Oxygen (O) ~= 15.999 g/mol
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Carbon (C): 15 x 12.011 = 180.160 g/mol
- Hydrogen (H): 30 x 1.008 = 30.240 g/mol
- Oxygen (O): 2 x 15.999 = 32.000 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (15 x 12.011 + 30 x 1.008 + 2 x 15.999)
Molar Mass = 180.160 + 30.240 + 32.000
Molar Mass = 242.400 g/mol
Final rounded value shown on this page: 242.40 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Carbon (C) | 15 | 12.011 | 15 x 12.011 | = 180.160 |
| Hydrogen (H) | 30 | 1.008 | 30 x 1.008 | = 30.240 |
| Oxygen (O) | 2 | 15.999 | 2 x 15.999 | = 32.000 |
Final molar mass 180.160 + 30.240 + 32.000 | = 242.400 | |||
Easy Way to Remember
Easy way to remember Molar Mass of Pentadecanoic Acid
- Molar Mass of Pentadecanoic Acid: 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 |
|---|---|
| Neutralization | HCl + NaOH → NaCl + H₂O |
| Acid-carbonate | ₂HNO₃ + CaCO₃ → Ca(NO₃)₂ + H₂O + CO₂ |
Do You Know?
– Pentadecanoic Acid contains 3 element types: C, H, O.
– C contributes the largest share of this compound's total molar mass.
– In C₁₅H₃₀O₂, H appears with the highest atom count.
– Its molar mass is 242.40 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Pentadecanoic Acid is neutralization (HCl + NaOH → NaCl + H₂O).
For more examples in the same format, browse the related formulas on molar mass.
Why This Compound Matters
Pentadecanoic Acid is important in acid-base work, especially when preparing safe measured solutions in lab sessions.
H chemistry is frequently tested in titration and neutralization chapters.
Similar calculations can be compared with Carbonic Acid (H2CO3) and Acetic Acid (C2H4O2).
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 C₁₅H₃₀O₂ 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 Pentadecanoic Acid.
Quick Revision
Formula: C15H30O2
Molar Mass: 242.40 g/mol
Key takeaway: count atoms accurately, multiply by atomic masses, and sum only at the end.
Formula Explanation
C15H30O2 contains Carbon (C) (15), Hydrogen (H) (30), Oxygen (O) (2). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Pentadecanoic Acid and Molar Mass of C₁₅H₃₀O₂ are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.