Experimental Data Limestone Oyster Shell Mass of flask + acid 94.1430g 97.2738 1.5000g 14901g Mass of boat + sample Mass of boat 0.7025g 97.7069a Mass of flask + acid + sample at 20 min 94.6204a Reactions Limestone CACO,(s) + MgCO,(s) + 4 HCI(aq) → CaCl, (aq) + MgCI, (aq) + 2 CO,(g) + H,O(1) CACO,(s) + 2 HCI(aq) → CaCl,(aq) + CO,(g) + H,O(1) Oyster Shell Calculated Values Limestone Oyster Shell Mass of sample Initial mass of flask + acid + sample Mass of CO, lost at 20 min Moles of CO, Moles of CO,2- Moles of CaCO, Moles of MgCO, Total mass of MgCO, + CACO, Mass percent (MgCO, + CaCO,) Mass of CaCO, Mass percent CaCO,

Experimental Data Limestone Oyster Shell Mass of flask + acid 94.1430g 97.2738 1.5000g 14901g Mass of boat + sample Mass of boat 0.7025g 97.7069a Mass of flask + acid + sample at 20 min 94.6204a Reactions Limestone CACO,(s) + MgCO,(s) + 4 HCI(aq) → CaCl, (aq) + MgCI, (aq) + 2 CO,(g) + H,O(1) CACO,(s) + 2 HCI(aq) → CaCl,(aq) + CO,(g) + H,O(1) Oyster Shell Calculated Values Limestone Oyster Shell Mass of sample Initial mass of flask + acid + sample Mass of CO, lost at 20 min Moles of CO, Moles of CO,2- Moles of CaCO, Moles of MgCO, Total mass of MgCO, + CACO, Mass percent (MgCO, + CaCO,) Mass of CaCO, Mass percent CaCO,

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

ChapterA1: Evaluation Of Analytical Data

Section: Chapter Questions

Problem A1.22QAP

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