Molar Mass of Ammonium Sulfite ((NH4)2SO3)
Molar Mass of Ammonium Sulfite makes it easier to move between measured grams and moles in classroom precipitation problems. Molar Mass of (NH₄)₂SO₃ is 116.14 g/mol, based on 4 element types, with O contributing the largest share.
For fast checks, use the calculate molar mass, verify element values in the periodic table with molar mass, or explore more molar mass.
Molar Mass of Ammonium Sulfite is:
116.14 g/mol
Molar Mass of (NH₄)₂SO₃ equals 116.14 g/mol, so 116.14 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Nitrogen (N) | 2 | 14.01 | 2 x 14.01 | 28.01 g/mol |
| Hydrogen (H) | 8 | 1.01 | 8 x 1.01 | 8.06 g/mol |
| Sulfur (S) | 1 | 32.06 | 1 x 32.06 | 32.06 g/mol |
| Oxygen (O) | 3 | 16.00 | 3 x 16.00 | 48.00 g/mol |
Final molar mass 28.010 + 8.060 + 32.060 + 48.000 | 116.14 g/mol | |||
Computing Molar Mass of Ammonium Sulfite Step by Step
Molar Mass of Ammonium Sulfite: Step-by-Step Calculation
1. Identify Element Counts
Read (NH4)2SO3 and list how many atoms of each element are present:
- 2 atoms of Nitrogen (N)
- 8 atoms of Hydrogen (H)
- 1 atom of Sulfur (S)
- 3 atoms of Oxygen (O)
2. Determine Atomic Masses
Look up each element mass from the periodic table:
- Nitrogen (N) ~= 14.007 g/mol
- Hydrogen (H) ~= 1.008 g/mol
- Sulfur (S) ~= 32.060 g/mol
- Oxygen (O) ~= 15.999 g/mol
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Nitrogen (N): 2 x 14.007 = 28.010 g/mol
- Hydrogen (H): 8 x 1.008 = 8.060 g/mol
- Sulfur (S): 1 x 32.060 = 32.060 g/mol
- Oxygen (O): 3 x 15.999 = 48.000 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (2 x 14.007 + 8 x 1.008 + 1 x 32.060 + 3 x 15.999)
Molar Mass = 28.010 + 8.060 + 32.060 + 48.000
Molar Mass = 116.140 g/mol
Final rounded value shown on this page: 116.14 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Nitrogen (N) | 2 | 14.007 | 2 x 14.007 | = 28.010 |
| Hydrogen (H) | 8 | 1.008 | 8 x 1.008 | = 8.060 |
| Sulfur (S) | 1 | 32.060 | 1 x 32.060 | = 32.060 |
| Oxygen (O) | 3 | 15.999 | 3 x 15.999 | = 48.000 |
Final molar mass 28.010 + 8.060 + 32.060 + 48.000 | = 116.140 | |||
Easy Way to Remember
Easy way to remember Molar Mass of Ammonium Sulfite
- Molar Mass of Ammonium Sulfite: 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 |
|---|---|
| Double displacement | AgNO₃ + NaCl → AgCl + NaNO₃ |
| Acid-salt reaction | Na₂CO₃ + ₂HCl → ₂NaCl + H₂O + CO₂ |
Do You Know?
– Ammonium Sulfite contains 4 element types: N, H, S, O.
– O contributes the largest share of this compound's total molar mass.
– In (NH₄)₂SO₃, H appears with the highest atom count.
– Its molar mass is 116.14 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Ammonium Sulfite is double displacement (AgNO₃ + NaCl → AgCl + NaNO₃).
For more examples in the same format, browse the related formulas on molar mass calculations.
Why This Compound Matters
Ammonium Sulfite appears in ionic-reaction practice and precipitation examples in school chemistry.
Its molar mass helps students move quickly between grams, moles, and concentration problems.
Similar calculations can be compared with Ammonium Hydrogen Sulfate (NH4HSO4) and Ammonium Sulfate ((NH4)2SO4).
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 (NH₄)₂SO₃ and miscounting atoms.
- Forgetting that parentheses in (NH₄)₂SO₃ multiply the entire grouped part.
- Mixing up O element contribution with total molar mass.
- Reporting a value without units; final answer should be in g/mol for Ammonium Sulfite.
Quick Revision
Formula: (NH4)2SO3
Molar Mass: 116.14 g/mol
Key takeaway: count atoms accurately, multiply by atomic masses, and sum only at the end.
Formula Explanation
(NH4)2SO3 contains Nitrogen (N) (2), Hydrogen (H) (8), Sulfur (S) (1), Oxygen (O) (3). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Ammonium Sulfite and Molar Mass of (NH₄)₂SO₃ are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.