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What is the empirical formula for a compound that is 7.9 percent Li and 92.1 percent Br?
Wiki User
∙ 14y ago
The Atomic Mass of lithium is 6.94, while that for bromine is 79.90. 7.9/6.94 = 1.095 and 92.1/79.90 = 1.15. the closest integer ratio between these two number si 1:1, so the empirical formula is LiBr.
Wiki User
∙ 14y ago
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