A mixture contains only NaCl and Al 2 (SO 4 ) 3 A 1 45 g sample of the mixture is dissolved in water, and an excess of NaOH is added, producing a precipitate of Al(OH) 3 The precipitate is filtered, dried, and weighed The mass of the precipitate is 0 107 g What is the mass percent of Al 2 (SO 4 ) 3...

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A mixture contains only NaCl and Al 2 (SO 4 ) 3 . A 1.45- g sample

Question:

A mixture contains only NaCl and Al₂(SO₄)₃. A 1.45- g sample of the mixture is dissolved in water, and an excess of NaOH is added, producing a precipitate of Al(OH)₃. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.107 g. What is the mass percent of Al₂(SO₄)₃ in the sample?