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Identify the numerical coefficient:
1-Bromopentane
An organobromine compound consisting of a five-carbon alkane with a bromine atom attached to the primary carbon.
Di-sec-Butyl Ether
An organic compound formed by the dehydration reaction between two sec-butyl alcohol molecules, resulting in an ether with a dialkyl structure.
Sec-Butanol
A secondary alcohol with the chemical formula C4H10O, where the hydroxyl group is connected to the second carbon in a butane chain.
Sulfuric Acid
A highly corrosive strong mineral acid with the molecular formula H2SO4, widely used in industry for processes including fertilizer manufacturing, oil refining, and wastewater processing.
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