Question: is my answer correct. 2. What is the formula and name of an ionic compound that has a composition of 13.8% Al, 36.9% O, and

is my answer correct. 2. What is the formula and name of an ionic compound that has a composition of 13.8% Al, 36.9% O, and 49.3% S, by mass? (5 marks) Assume 100g .". Al = 13. 8, 0: 36. 9 9, 5:49. 3 9 1. mass -? moles 2. Simplist molar ratio Mal Al = 13. 8 8 = 0. 511 mol Alo. 51 92.31 51.54 26, 48 8/m 0 .511 0. 5 1 1 6 . 511 Mol O = 36 . 94 - 2 31 mol = Al Oy. 5 53 - multiply by 2 to = 2 ( Alou g Sz) get whole number 3 S mols = 49. 3 = 1 54 mal = Alz (504)3 32. 07 9 / m and 12 0 Formula: Ala ( 60 4) 3 Name: Aluminum Sulfate

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