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NBR3, or nitrogen tribromide, has a fixed molecular formula, meaning it has a defined composition of one nitrogen atom and three bromine atoms. Therefore, there is only one specific molecular structure for NBR3, and it has a constant molar mass of approximately 174.7 g/mol. However, variations in isotopes of nitrogen or bromine could lead to different isotopologues, but these are typically not considered distinct molecules in the context of chemical species.

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1mo ago

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