Molar Mass of Nickel(II) Dichromate (NiCr2O7)
Molar Mass of Nickel(II) Dichromate makes it easier to move between measured grams and moles in classroom precipitation problems. Molar Mass of NiCr₂O₇ is 274.68 g/mol, based on 3 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 page.
Molar Mass of Nickel(II) Dichromate is:
274.68 g/mol
Molar Mass of NiCr₂O₇ equals 274.68 g/mol, so 274.68 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Nickel (Ni) | 1 | 58.69 | 1 x 58.69 | 58.69 g/mol |
| Chromium (Cr) | 2 | 52.00 | 2 x 52.00 | 103.99 g/mol |
| Oxygen (O) | 7 | 16.00 | 7 x 16.00 | 111.99 g/mol |
Final molar mass 58.690 + 103.990 + 111.990 | 274.68 g/mol | |||
Computing Molar Mass of Nickel(II) Dichromate Step by Step
Molar Mass of Nickel(II) Dichromate: Step-by-Step Calculation
1. Identify Element Counts
Read NiCr2O7 and list how many atoms of each element are present:
- 1 atom of Nickel (Ni)
- 2 atoms of Chromium (Cr)
- 7 atoms of Oxygen (O)
2. Determine Atomic Masses
Look up each element mass from the periodic table:
- Nickel (Ni) ~= 58.693 g/mol
- Chromium (Cr) ~= 51.996 g/mol
- Oxygen (O) ~= 15.999 g/mol
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Nickel (Ni): 1 x 58.693 = 58.690 g/mol
- Chromium (Cr): 2 x 51.996 = 103.990 g/mol
- Oxygen (O): 7 x 15.999 = 111.990 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (1 x 58.693 + 2 x 51.996 + 7 x 15.999)
Molar Mass = 58.690 + 103.990 + 111.990
Molar Mass = 274.680 g/mol
Final rounded value shown on this page: 274.68 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Nickel (Ni) | 1 | 58.693 | 1 x 58.693 | = 58.690 |
| Chromium (Cr) | 2 | 51.996 | 2 x 51.996 | = 103.990 |
| Oxygen (O) | 7 | 15.999 | 7 x 15.999 | = 111.990 |
Final molar mass 58.690 + 103.990 + 111.990 | = 274.680 | |||
Easy Way to Remember
Easy way to remember Molar Mass of Nickel(II) Dichromate
- Molar Mass of Nickel(II) Dichromate: 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?
– Nickel(II) Dichromate contains 3 element types: Ni, Cr, O.
– O contributes the largest share of this compound's total molar mass.
– In NiCr₂O₇, O appears with the highest atom count.
– Its molar mass is 274.68 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Nickel(II) Dichromate is double displacement (AgNO₃ + NaCl → AgCl + NaNO₃).
For more examples in the same format, browse the related formulas on molar mass guide.
Why This Compound Matters
Nickel(II) Dichromate 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 Nickel(II) Chromate (NiCrO4) and Sodium Chromate (Na2CrO4).
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 NiCr₂O₇ and miscounting atoms.
- Rounding atomic masses too early before finishing all multiplication steps.
- Mixing up O element contribution with total molar mass.
- Reporting a value without units; final answer should be in g/mol for Nickel(II) Dichromate.
Quick Revision
Formula: NiCr2O7
Molar Mass: 274.68 g/mol
Key takeaway: count atoms accurately, multiply by atomic masses, and sum only at the end.
Formula Explanation
NiCr2O7 contains Nickel (Ni) (1), Chromium (Cr) (2), Oxygen (O) (7). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Nickel(II) Dichromate and Molar Mass of NiCr₂O₇ are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.