Determine the molecular formula for unknown compound B based on the following data: combustion of a 17.92mg sample of compound B yielded 23.03 mg of carbon dioxide and 2.36 mg of water; using the sodium fusion method of analysis, a 12.35mg sample compound B yielded 25.85 mg of silver chloride; and, from freezing point depression analysis, the molar mass for compound B was determined to be 273-275g/mol.

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