A mixture of 8-hydroxyquinoline(Q) complexes of aluminum and magnesium weighed 1.856 g. When ignited in a furance open to air, the mxiture decomposed, leaving a residue of Al2O3 and MgO weighing 0.216 g. Find the weight percent of MgQ2 in the original mixture. AIQ3 + MgQ2 + heat --> Al2O3 + MgO Molar mass( g/mol): AIQ3 = 459.441, MgQ2 = 312.611, Al2O3 = 101.961, MgO = 40.304 Write answer to 1 decimal place. No % sign in answer.

A mixture of 8-hydroxyquinoline(Q) complexes of aluminum and magnesium weighed 1.856 g. When ignited in a furance open to air, the mxiture decomposed, leaving a residue of Al2O3 and MgO weighing 0.216 g. Find the weight percent of MgQ2 in the original mixture. AIQ3 + MgQ2 + heat --> Al2O3 + MgO Molar mass( g/mol): AIQ3 = 459.441, MgQ2 = 312.611, Al2O3 = 101.961, MgO = 40.304 Write answer to 1 decimal place. No % sign in answer.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.39QAP

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1. A mixture of the 8-hydroxyquinoline complexes of Al and Mg weighed 1.084 3 g. When ignited in a furnace open to the air, the mixture decomposed, leaving a residue of Al>O3 and MgO weighing 0.134 4 g. Find the weight percent of Al(CoH&NO); in the original mixture. ON Mg heat JAI + Al,03 + MgO 3. AIQ3 FM 459.43 MgQ2 FM 312.61 FM 101.96 FM 40.304
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