During the second week, if your team is assigned to analyze baking soda (sodium

Question

During the second week, if your team is assigned to analyze baking soda (sodium bicarbonate, NaHCO_3), which standard solution will you use? Since sodium bicarbonate is a weak base standard HCI solution is used as the titrant and sodium bicarbonate is the analyte The eauivalence point of a titration is the theoretical point while the quantity of titrant added equals the exact amount needed for stoichiometric reaction with the analyte However what we actually measure is the end point at which the solution usually has a sudden visible color change indicated by the indicator. For our purpose, an indicator is a compound that undergoes a color change corresponding to a pH change of the solution You want to choose the appropriate indicator in a way that it changes color (indicating the end point of the titration) near the equivalence point of the titration...

Explanation / Answer

1) The indicator is Methyl Orange and The Color change is yellow to red orange

2) The standard deviation of the second blank is = 0.16+-0.032mol/L

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