Estimation of sodium carbonate and sodium bicarbonate present in a mixture practical
Answers
The mixed base samples were dissolved in distilled water without carbon dioxide, and then the standard solution of hydrochloric acid was added in it. The excessive hydrochloric acid was titrated with standard solution of sodium hydroxide so that the total amount of acid consumed by mixed base was measured. Another diluted solution was mixed with excessive diluted hydrochloric acid on line, and the content of carbon in carbon dioxide produced in the process was determined by inductively coupled plasma atomic emission spectrometry coupled with gas sampling method. On the basis of on the equations of total consumed acid and carbon, the content of sodium carbonate and sodium bicarbonate in mixed base could be obtained. The linear range of method for carbon was 0.01-250μg/mL with the detection limit of 0.035μg/mL. The determination results of sodium carbonate and sodium bicarbonate in actual sample by this method were in good agreement with those obtained by barium chloride separation method. The relative standard deviations (RSD) were 2.8%-3.3% and 3.2%-4.4% for sodium carbonate and sodium bicarbonate, respectively.
Answer:
With those obtained by the barium chloride separation technique, the findings of the determination of sodium carbonate and sodium bicarbonate in the real sample by this method were in good agreement. For sodium carbonate and sodium bicarbonate, the relative standard deviations (RSD) were 2.8 percent -3.3 percent and 3.2 percent -4.4 percent .
Explanation:
After dissolving the combined base samples in distilled water free of carbon dioxide, the hydrochloric acid standard solution was added. The surplus hydrochloric acid was titrated with a standard sodium hydroxide solution to determine how much acid was used overall by the mixed base.
Inductively coupled plasma atomic emission spectrometry in conjunction with a gas sampling method was used to assess the amount of carbon in the carbon dioxide created as a result of mixing an additional diluted solution with excessively diluted hydrochloric acid on line.
The amount of sodium carbonate and sodium bicarbonate in mixed bases might be calculated using the formulae for total eaten acid and carbon. The carbon method's linear range for carbon was 0.01-250 g/mL with the 0.035 g/mL detection limit.
With those obtained by the barium chloride separation technique, the findings of the determination of sodium carbonate and sodium bicarbonate in the real sample by this method were in good agreement. For sodium carbonate and sodium bicarbonate, the relative standard deviations (RSD) were 2.8 percent -3.3 percent and 3.2 percent -4.4 percent .
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