Topic Content:
- Determination of Percentage Purity
When an impure chemical substance is used in titrationTitration is a quantitative method of chemical analysis used to determine the unknown concentration of a solution (called the analyte) by gradually adding a solution of known concentration (called the titrant)... More, only the pure part of that substance takes part in the chemical reaction and is consumed. The impurity will not react.
Example 1.2.1:
A is 0.100 mol dm-3 solution of HNO3 .
B is a 5.00 g mixture of Na2 CO3 and NaCl in 500 cm3 of solution.
Put A into a burette and titrate it against 25 cm3 portions of B using methyl orange as an indicator. Tabulate your burette readings and determine the average volume of A used. From your result and the information provided, calculate the
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