The concentration of a perchloric acid solution was established by titration against primary standard sodium carbonate (product: CO2); the following data were obtained.
Mass Na2CO3, g | 0.2068 | 0.1997 | 0.2245 | 0.2137 |
Volume HClO4, mL | 36.31 | 35.11 | 39.00 | 37.54 |
(a)Calculate the average molar concentration of the acid.
(b)Calculate the standard deviation for the data and the coefficient of variation for the data.
(c)Use statistics to decide whether the outlier should be retained or rejected.
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