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Question

10 g of a mixture of barium chloride and anhydrous sodium sulphate is dissolved in water. An excess of barium chloride solution is added and 6.99 g of barium sulphate is precipitated according to the equation given below:

Na2SO4 + BaCl2 → BaSO4 +2NaCl

[O = 16, Na = 23, S = 32, Ba = 137]

Calculate the percentage of sodium sulphate in the original mixture.


A

42.6 %

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B

43.2 %

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C

44.8 %

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D

42.4 %

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E

46.2 %

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Solution

The correct option is A

42.6 %



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