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Analysis. Analysis #1 Concentration of NaOH from trial #1 Concentration of NaOH from trial #2 Average Concentration of NaOH Solution Analysis #2 - Trial #2 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #2 - Trial #3 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #3 - Trial #2 pH half way to the equivalence Ka of the unknown acid Analysis #3 - Trial #3 pH half way to the equivalence Ka of the unknown acid Analysis #4 Average Molar mass Average Ka Value 0.116 M Correct 0.0998 M Correct 0.1079 M Value 0.001 0.001 197.11 Value 0.0017 0.0017 111.79 Value Value Value mol Correct Correct mol Correct g/mol Correct mol Correct mol Correct g/mol Correct Not evaluated Incorrect Not evaluated Incorrect g/mol Incorrect Incorrect

Analysis. Analysis #1 Concentration of NaOH from trial #1 Concentration of NaOH from trial #2 Average Concentration of NaOH Solution Analysis #2 - Trial #2 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #2 - Trial #3 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #3 - Trial #2 pH half way to the equivalence Ka of the unknown acid Analysis #3 - Trial #3 pH half way to the equivalence Ka of the unknown acid Analysis #4 Average Molar mass Average Ka Value 0.116 M Correct 0.0998 M Correct 0.1079 M Value 0.001 0.001 197.11 Value 0.0017 0.0017 111.79 Value Value Value mol Correct Correct mol Correct g/mol Correct mol Correct mol Correct g/mol Correct Not evaluated Incorrect Not evaluated Incorrect g/mol Incorrect Incorrect

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Data: Standardization of NaOH Trial #1 Mass of KHP Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence point Standardization of NaOH Trial #2 Mass of KHP Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence oint Titration of Unknown acid Trial #1 Mass of acid Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence point Titration of Unknown acid Trial #2 Mass of acid Initial Volume of NaOH in burette Initial pH Volume of NaOH in burette at equivalence point pH at equivalence point Titration of Unknown acid Trial #3 Mass of acid Initial Volume of NaOH in burette Initial pH Volume of NaOH in burette at equivalence point pH at equivalence point Value 0.700 3.63 33.23 Value 0.700 1.34 35.68 Value 0.193 2.29 19.73 Value 0.198 2.29 3.27 11.60 4.97 Value 0.193 11.60 3.27 27.60 10.30 g mL mL g mL mL mL mL g mL mL g mL mL
Transcribed Image Text:Data: Standardization of NaOH Trial #1 Mass of KHP Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence point Standardization of NaOH Trial #2 Mass of KHP Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence oint Titration of Unknown acid Trial #1 Mass of acid Initial Volume of NaOH in burette Volume of NaOH in burette at equivalence point Titration of Unknown acid Trial #2 Mass of acid Initial Volume of NaOH in burette Initial pH Volume of NaOH in burette at equivalence point pH at equivalence point Titration of Unknown acid Trial #3 Mass of acid Initial Volume of NaOH in burette Initial pH Volume of NaOH in burette at equivalence point pH at equivalence point Value 0.700 3.63 33.23 Value 0.700 1.34 35.68 Value 0.193 2.29 19.73 Value 0.198 2.29 3.27 11.60 4.97 Value 0.193 11.60 3.27 27.60 10.30 g mL mL g mL mL mL mL g mL mL g mL mL
Analysis: Analysis #1 Concentration of NaOH from trial #1 Concentration of NaOH from trial #2 Average Concentration of NaOH Solution Analysis #2 - Trial #2 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #2 - Trial #3 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #3 - Trial #2 pH half way to the equivalence Ka of the unknown acid Analysis #3 - Trial #3 pH half way to the equivalence Ka of the unknown acid Analysis #4 Analysis #5 Average Molar mass Average Ka Identity of your acid Literature molar mass of acid Literature Ka of acid % Error in Molar Mass % Error in Ka Value 0.116 M 0.0998 M Correct 0.1079 M Value 0.001 0.001 197.11 Value 0.0017 0.0017 111.79 Value Value Value Value mol Correct Correct Correct mol Correct g/mol Correct mol Correct mol Correct g/mol Correct % % Not evaluated Incorrect Not evaluated Incorrect g/mol Incorrect Incorrect Not evaluated g/mol Incorrect Incorrect Incorrect Incorrect
Transcribed Image Text:Analysis: Analysis #1 Concentration of NaOH from trial #1 Concentration of NaOH from trial #2 Average Concentration of NaOH Solution Analysis #2 - Trial #2 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #2 - Trial #3 Moles of NaOH required at equivalence Moles of unknown acid present in beaker Molar mass of unknwon acid Analysis #3 - Trial #2 pH half way to the equivalence Ka of the unknown acid Analysis #3 - Trial #3 pH half way to the equivalence Ka of the unknown acid Analysis #4 Analysis #5 Average Molar mass Average Ka Identity of your acid Literature molar mass of acid Literature Ka of acid % Error in Molar Mass % Error in Ka Value 0.116 M 0.0998 M Correct 0.1079 M Value 0.001 0.001 197.11 Value 0.0017 0.0017 111.79 Value Value Value Value mol Correct Correct Correct mol Correct g/mol Correct mol Correct mol Correct g/mol Correct % % Not evaluated Incorrect Not evaluated Incorrect g/mol Incorrect Incorrect Not evaluated g/mol Incorrect Incorrect Incorrect Incorrect
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