Solution-Ashing burns off the organic matter in a sample

Ashing burns off the organic matter in a sample leaving

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Reference no: EM13586611

Calcium in powdered milk is determined by ashing a 1.4983-g sample and then titrating thecalcium with EDTA solution, 12.13 mL being required. The EDTA was standardized bytitrating 10.00 mL of a zinc solution prepared by dissolving 0.5941-g zinc metal in acid anddilution to 1L in a volumetric flask (i.e. 1.0000 L). For the standardization titration, 10.82mL of EDTA was required. What is the weight % Ca in the powdered milk sample?Notes on procedure:1. Ashing burns off the organic matter in a sample, leaving just the mineral residue,which can then be dissolved for analysis.2. The stoichiometry of the complexation reactions between EDTA and calcium andEDTA and zinc is 1:1 in both cases.

Reference no: EM13586611

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Ashing burns off the organic matter in a sample leaving

Reference no: EM13586611

Reference no: EM13586611

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