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What is the empirical formula for octane?

Understand the Problem

The question is asking for the empirical formula of octane, which is a hydrocarbon with a specific molecular formula. The high-level approach to find the empirical formula is to determine the simplest whole number ratio of carbon to hydrogen atoms in octane.

Answer

C4H9

The empirical formula for octane is C4H9.

Answer for screen readers

The empirical formula for octane is C4H9.

More Information

The empirical formula represents the simplest whole-number ratio of elements in a compound. For octane, the molecular formula C8H18 reduces to C4H9.

Tips

A common mistake is to confuse the molecular formula with the empirical formula. Ensure to simplify the ratios to their smallest whole numbers.

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