Complete the table and provide the percent (%) recovery for each extraction. ExtractionSingleExtraction 1 Extraction 2 Extraction 1SingleMultipleMultipleExtraction 2Weight of tea leaves (g)Weight of evaporating dish +caffeine (g)Weight of empty evaporatingdish (g)10.00210.12310.01310.007123.689124.334121.815126.435123.513124.147121.614126.246Weight of caffeine (g)0.1760.1870.2010.189expected caffeine content: 225mg / 10 g black tea0.2250.2250.2250.225Percent (%) Recovery

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Complete the table and provide the percent (%) recovery for each extraction

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 83QRT

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

Complete the table and provide the percent (%) recovery for each extraction.

Extraction
Single
Extraction 1 Extraction 2 Extraction 1
Single
Multiple
Multiple
Extraction 2
Weight of tea leaves (g)
Weight of evaporating dish +
caffeine (g)
Weight of empty evaporating
dish (g)
10.002
10.123
10.013
10.007
123.689
124.334
121.815
126.435
123.513
124.147
121.614
126.246
Weight of caffeine (g)
0.176
0.187
0.201
0.189
expected caffeine content: 225
mg / 10 g black tea
0.225
0.225
0.225
0.225
Percent (%) Recovery

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