A solution of Ba(OH) 2 was standardized against 0.1215 g of primary-standard-grade benzoic acid, C 6 H

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A solution of Ba(OH)2 was standardized against 0.1215 g of primary-standard-grade benzoic acid, C6H5COOH (122.12 g/mol). An end point was observed after addition of 43.25 mL of base.
(a) Calculate the molar concentration of the base.
(b) Calculate the standard deviation of the molar concentration if the standard deviation for the mass measurement was ±0.3 mg and that for the volume measurement was ±0.02 mL.
(c) Assuming an error of -0.3 mg in the mass measurement, calculate the absolute and relative systematic error in the molar concentration.

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Fundamentals Of Analytical Chemistry

ISBN: 9780357450390

10th Edition

Authors: Douglas A. Skoog, Donald M. West, F. James Holler, Stanley R. Crouch

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