A compound contains 28% nitrogen and 72% metal by mass 3 atoms of the metal combine with 2 atoms of nitrogen. The atomic mass of metal is

Question

**Options:**
- **A.** [object Object]
- **B.** [object Object]
- **C.** [object Object]
- **D.** [object Object]

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**Difficulty:** EASY | **Chapter:** Mole concept | **Topic:** Law of chemical combination, atomic & molecular mass, mole concept, calculations

Accepted Answer

## ✅ Correct Answer: **C**

### 📖 Detailed Explanation:
This question uses atomic structure & atomic mass, mole concept & particle counting. Relate mass, moles and number of particles using the mole concept and basic stoichiometry; doing the algebra gives the value listed in option C.

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A compound contains 28% nitrogen and 72% metal by mass 3 atoms of the metal combine with 2 atoms of nitrogen. The atomic mass of metal is

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