b) The thermogravimetric curve for calcium salicylate monohydrate (CAC14H1006-H2O) is shown below. (mw 332 g/mol). Starting with an initial sample mass of 16.55 mg, calculate the mass of the sample remaining when it is heated to i) 350 oc and ii) 800 oc. The first step is loss Of H20 (mw 18 g/mol), followed by loss Of C703H6 (mw 138 g/mol), then C6H4 (mw 76 g/mol) and finally C02 (mw 44 g/mol). Give your answers to two decimal places and show your work. CaC,,H06 H,O CaC,,H,0 20- 40 CaC,0,H, 60 CaCO, CaO 80 100 200 800 Temperature ("C) 400 600 1000 Mass loss (%)

b) The thermogravimetric curve for calcium salicylate monohydrate (CAC14H1006-H2O) is shown below. (mw 332 g/mol). Starting with an initial sample mass of 16.55 mg, calculate the mass of the sample remaining when it is heated to i) 350 oc and ii) 800 oc. The first step is loss Of H20 (mw 18 g/mol), followed by loss Of C703H6 (mw 138 g/mol), then C6H4 (mw 76 g/mol) and finally C02 (mw 44 g/mol). Give your answers to two decimal places and show your work. CaC,,H06 H,O CaC,,H,0 20- 40 CaC,0,H, 60 CaCO, CaO 80 100 200 800 Temperature ("C) 400 600 1000 Mass loss (%)

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.19QAP

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