Question: A mixture contained aluminum sulfate and sodium sulfate. A sample of the mixture weighing 3.458 g was dissolved in water and treated with sodium hydroxide

A mixture contained aluminum sulfate and sodium sulfate. A sample of the mixture weighing 3.458 g was dissolved in water and treated with sodium hydroxide solution to yield a precipitate. The precipitate was incinerated to yield 0.474 g aluminum oxide. Write chemical equations for the reactions that occur. Calculate the percentage of aluminum sulfate in the mixture.

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