Question on: JAMB Chemistry - 2024
The molecular formula of a hydrocarbon with an empirical formula of CH₃ and a molar mass of 30 is
A
C₂H₄
B
C₃H₃
C
C₂H₆
D
C₆H₆
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Correct Option: C
Solution steps:
- Calculate empirical formula mass: C (12 g/mol) + H₃ (3 g/mol) = 15 g/mol
- Determine ratio: 30 / 15 = 2
- Multiply subscripts: C: 1×2=2, H:3×2=6 → Molecular formula: C₂H₆
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