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experiment: determination of mixed alkali Draw a titration curve for the acid used in the experiment. Define all regions on the graph by writing related titration reactions. Here are the details from the experiment:

experiment: determination of mixed alkali Draw a titration curve for the acid used in the experiment. Define all regions on the graph by writing related titration reactions. Here are the details from the experiment:

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
Problem 9P
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experiment: determination of mixed alkali

Draw a titration curve for the acid used in the experiment. Define all regions on the graph by writing related titration reactions.

Here are the details from the experiment:

Table 2. Analysis of Unknown Volume of HCI needed to Volume of HCI needed to reach %w/w %w/w %w/w Trial reach bromocresol NaOH Na2CO3 NaHCO3 phenolphthalein end point (mL) green end point (mL) 1 6.4 11.6 0.01886 0.2166 2 6.2 11.4 0.01553 0.2140 3 6.6 11.4 0.02866 0.2026 Average %w/w of component 0.02102 0.2111 Standard Deviation 0.00683 0.0075 Relative Standard Deviation 32.48735 3.5391 O O
Transcribed Image Text:Table 2. Analysis of Unknown Volume of HCI needed to Volume of HCI needed to reach %w/w %w/w %w/w Trial reach bromocresol NaOH Na2CO3 NaHCO3 phenolphthalein end point (mL) green end point (mL) 1 6.4 11.6 0.01886 0.2166 2 6.2 11.4 0.01553 0.2140 3 6.6 11.4 0.02866 0.2026 Average %w/w of component 0.02102 0.2111 Standard Deviation 0.00683 0.0075 Relative Standard Deviation 32.48735 3.5391 O O
Table 1. Standardization of HCI Solution Molarity of HCI (mol/L) Volume of Trial Weight of Na2CO3 (g) HCI (mL) 1 0.1005 19.3 0.09826 19.5 18.9 0.1003 0.09706 0.0997 0.09954 Average Molarity of HCI Standard Deviation 0.09829 0.00124 Relative Standard Deviation (from the mean in ppt) 1.26295
Transcribed Image Text:Table 1. Standardization of HCI Solution Molarity of HCI (mol/L) Volume of Trial Weight of Na2CO3 (g) HCI (mL) 1 0.1005 19.3 0.09826 19.5 18.9 0.1003 0.09706 0.0997 0.09954 Average Molarity of HCI Standard Deviation 0.09829 0.00124 Relative Standard Deviation (from the mean in ppt) 1.26295
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