Soru
Find the number of moles in 3.30 gof (NH4)_(2)SO_(4) A. 132.1 mol B. 40.0 mol C. 0.0279 mol D. 0.0250 mol A B C D
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Cevap
To find the number of moles in 3.30 g of \((NH_4)_2SO_4\), we need to follow these steps:1. **Calculate the molar mass of \((NH_4)_2SO_4\)**: - Nitrogen (N):
- Hydrogen (H):
- Sulfur (S):
- Oxygen (O):
The formula for ammonium sulfate is \((NH_4)_2SO_4\), which means it has: - 2 nitrogen atoms - 8 hydrogen atoms - 1 sulfur atom - 4 oxygen atoms So, the molar mass is calculated as follows:
2. **Calculate the number of moles**:
Therefore, the number of moles in 3.30 g of \((NH_4)_2SO_4\) is approximately 0.0250 mol.The correct answer is:D. 0.0250 mol