What is the number of moles of 'He' in 104 g of helium gas ?
- A. 52
- B. 26 ✓
- C. 13
- D. 6.5
Correct Answer: B. 26
Explanation
The atomic mass of Helium (He) is 4 g/mol. The number of moles is calculated by dividing the given mass by the molar mass: 104 / 4 = 26 moles.
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