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Title: What is the empirical formula of the substance? Post by: juhnjuhn on Sep 24, 2012 One of the substances in a new alkaline battery decomposes into 0.630 g manganese and 0.370 g oxygen gas. What is the empirical formula of the substance?
Title: What is the empirical formula of the substance? Post by: tommytoughnut on Sep 24, 2012 MnO
.630g Mn / 54.9 = .011 mole .370g O2 / 32 = .012 mole Title: What is the empirical formula of the substance? Post by: judypn on Sep 24, 2012 Divide through by atomic mass of each element
Mn = 0.630/54.938 = 0.0115 O = 0.370/15.999 = 0.023 Mn:O = 1:2 Empirical formula = MnO2 |