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1. Using your data from Part I of the experiment, determine the mass of strontium (Sr) in the sample of strontium carbonate (SrCO3) which you collected and dried. Also determine the percent composition of strontium in the original unknown based upon your data. Show all work.

1. Using your data from Part I of the experiment, determine the mass of strontium (Sr) in the sample of strontium carbonate (SrCO3) which you collected and dried. Also determine the percent composition of strontium in the original unknown based upon your data. Show all work.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter10: Fuels, Organic Chemicals, And Polymers
Section10.2: U. S/ Energy Sources And Consumption
Problem 10.4E
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**Data Table for Part I** - **Mass of unknown used:** 2.45 g - **Mass of dry filter paper and strontium carbonate (SrCO₃):** 1.99 g - **Mass of empty filter paper (after folding and tearing):** 0.62 g - **Mass of strontium carbonate obtained:** 1.37 g **Data Table for Part II** - **Mass of crucible, lid and unknown sample:** 29.27 g - **Mass of empty crucible and lid:** 26.14 g - **Mass of unknown sample used:** 3.13 g - **Mass of crucible, lid and contents after first heating:** 28.02 g - **Mass of crucible, lid and contents after second heating:** 28.02 g - **Mass of crucible, lid and contents after third heating (if necessary):** - **Mass of crucible, lid and contents after fourth heating (if necessary):** - **Final mass of crucible, lid and contents after heating:** 28.02 g - **Mass of empty crucible and lid (from above):** 26.14 g - **Mass of residue after water loss:** 1.88 g - **Mass of original unknown (from above):** 3.13 g - **Mass of water contained in unknown sample:** 1.25 g
Transcribed Image Text:**Data Table for Part I** - **Mass of unknown used:** 2.45 g - **Mass of dry filter paper and strontium carbonate (SrCO₃):** 1.99 g - **Mass of empty filter paper (after folding and tearing):** 0.62 g - **Mass of strontium carbonate obtained:** 1.37 g **Data Table for Part II** - **Mass of crucible, lid and unknown sample:** 29.27 g - **Mass of empty crucible and lid:** 26.14 g - **Mass of unknown sample used:** 3.13 g - **Mass of crucible, lid and contents after first heating:** 28.02 g - **Mass of crucible, lid and contents after second heating:** 28.02 g - **Mass of crucible, lid and contents after third heating (if necessary):** - **Mass of crucible, lid and contents after fourth heating (if necessary):** - **Final mass of crucible, lid and contents after heating:** 28.02 g - **Mass of empty crucible and lid (from above):** 26.14 g - **Mass of residue after water loss:** 1.88 g - **Mass of original unknown (from above):** 3.13 g - **Mass of water contained in unknown sample:** 1.25 g
1. Using your data from Part I of the experiment, determine the mass of strontium (Sr) in the sample of strontium carbonate (SrCO₃) which you collected and dried. Also determine the percent composition of strontium in the original unknown based upon your data. Show all work.
Transcribed Image Text:1. Using your data from Part I of the experiment, determine the mass of strontium (Sr) in the sample of strontium carbonate (SrCO₃) which you collected and dried. Also determine the percent composition of strontium in the original unknown based upon your data. Show all work.
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