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Question
during an analysis, several samples of a hydrocarbon compound are burned to find the percent composition of the compound. the results of the analysis are given in the table below.
| sample | mass of compound (g) | percentage of carbon (%) | percentage of hydrogen (%) |
|---|---|---|---|
| 2 | 10.000 | 92.3 | 7.7 |
| 3 | 15.000 | 92.3 | 7.7 |
what law of reactions do these results support? why? 250 words maximum
The law of definite proportions states that a given chemical compound always contains its component elements in fixed ratio (by mass) regardless of its source or method of preparation. In the provided data, different - mass samples of the hydrocarbon compound have the same percentage composition of carbon (92.3%) and hydrogen (7.7%). This consistency in percent - composition across different sample masses supports the law of definite proportions.
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The law of definite proportions. The percentage composition of carbon and hydrogen in the hydrocarbon is constant across different - mass samples, which is in accordance with the law of definite proportions.