An unknown sample containing mixed alkali (NaOH, NaHCO3, or Na2CO3) was analyzed using t double flask method. A 250 mg sample was dissolved in 250 mL CO2 free water. A 20.0 mL aliq of this sample required 11.3 mL of 0.009125 M HCI solution to reach the phenolphthalein end point. Another 29.0 mL aliquot of the sample was titrated to the bromocresol green endpoint u 31.1 mL of the standard acid. What is/are the component/s of the sample? O Cannot be determined O NAHCO, only O NAOH and Na,CO3
An unknown sample containing mixed alkali (NaOH, NaHCO3, or Na2CO3) was analyzed using t double flask method. A 250 mg sample was dissolved in 250 mL CO2 free water. A 20.0 mL aliq of this sample required 11.3 mL of 0.009125 M HCI solution to reach the phenolphthalein end point. Another 29.0 mL aliquot of the sample was titrated to the bromocresol green endpoint u 31.1 mL of the standard acid. What is/are the component/s of the sample? O Cannot be determined O NAHCO, only O NAOH and Na,CO3
Chapter16: Applications Of Neutralization Titrations
Section: Chapter Questions
Problem 16.32QAP
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