37. Solving a chemistry problem
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37. Solving a chemistry problem
27. 50.0 ml of 0.0949 N HCl was added to a sample of Na2CO3 weighing 0.1032 g. The acid residue was titrated with 24.8 ml of 0.1298 M NaOH against methyl orange. Calculate the mass fraction (%) of indifferent impurities in the sample.
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