In a volumetric determination of an analyte A, the data obtained and their standard deviations are as follows:
Initial buret reading | 0.19 mL | 0.02 mL |
Final buret reading | 9.26 mL | 0.03 mL |
Sample mass | 45.0 mg | 0.2 mg |
From the data, find the coefficient of variation of the final result for the % A that is obtained by using the equation that follows and assuming there is no uncertainty in the equivalent mass.
% A = titrant volume × equivalent mass × 100%/sample mass
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