Question: A 0.500 g sample containing Na2CO3, NaHCO3 and inert material was dissolved and required 38.00 mL of 0.1100 M HCl to reach the methyl

A 0.500 g sample containing Na2CO3, NaHCO3 and inert material was dissolved

A 0.500 g sample containing Na2CO3, NaHCO3 and inert material was dissolved and required 38.00 mL of 0.1100 M HCl to reach the methyl red end-point. A second 0.500 g sample was dissolved and treated with 10.00 mL of 0.5000 M NaOH. A large excess of BaCl2 was added precipitating BaCO3. The remaining solution required 17.00 mL of the HCl to reach the phenolphthalein end-point. Calculate percentages of Na2CO3 (105.99 g mol-) and NaHCO3 (84.01 g mol-) in the sample.

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Answer Percentage of Na2CO3 053800mL01100molL05g1molL10599gmol 8243 Percentage of NaHCO3 051000mL050... View full answer

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