A hydrocarbon on combustion gives `CO_(2) and H_(2)O` in a volume ratio of `2 : 1` , under similar conditions of temperature and pressure. What is the emperical formula of the hydrocarbon?

Explanation

To determine the empirical formula of the hydrocarbon based on the given combustion products, we can follow these steps:

### Step 1: Understand the combustion reaction
When a hydrocarbon (C_xH_y) combusts, it reacts with oxygen (O_2) to produce carbon dioxide (CO_2) and water (H_2O). The general equation for the combustion of a hydrocarbon can be written as:
\[ C_xH_y + O_2 \rightarrow CO_2 + H_2O \]

### Step 2: Analyze the volume ratio of products
The problem states that the volume ratio of CO_2 to H_2O is 2:1. This means that for every 2 volumes of CO_2 produced, 1 volume of H_2O is produced.
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