A Mixture of BaCl₂ and NaCl Is Analyzed by Precipitating

question 69

Multiple Choice

A mixture of BaCl₂ and NaCl is analyzed by precipitating all the barium as BaSO₄.After addition of an excess of Na₂SO₄ to a 3.725-g sample of the mixture,the mass of precipitate collected is 2.734 g.What is the mass percentage of barium chloride in the mixture?

• A)82.28%
• B)73.40%
• C)43.18%
• D)65.47%
• E)19.60%

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