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heated a the laboratous jou %. In هر روان روهی و رضك اس لیے ہم نے عرضه لاہور کے عوام نے ازل ہونے سے ہے۔ میره مرمر ر دهید و به
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Answer #1

Mass of magnesium = 50.025g - 49.738g = 0.287g

Number of moles of Mg = 0.287g/24.3g/mol = 0.012mol

Mass of magnesium oxide = 50.291 - 49.738 = 0.553g

Number of moles of oxygen in product = (0.553g - 0.287g)/16g/mol = 0.266g/16g/mol = 0.0166 mol

Molar ratio of Mg : Oxygen = 0.012 : 0.016 = 0.75 ~ 1

Empirical formula formed = MgO

Mg + 1/2 O2\rightarrow MgO

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