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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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**Table 1. Titration Data** | | Trial 1 | Trial 2 | Trial 3 | |---------------------------|-----------|-----------|-----------| | **mass of Na₂CO₃ (grams)** | 0.0780g | 0.0810g | 0.0930g | | **moles of Na₂CO₃** | | | | | **V final, volume dilute HCl at endpoint (mL)** | 5.52 mL | 11 mL | 8.52 mL | | **V initial, volume dilute HCl at start (mL)** | 9.77 mL | 17.91 mL | 19.03 mL | | **V total, volume dilute HCl to reach the endpoint (mL)** | 4.25 mL | 6.91 mL | 10.51 mL | | **molarity of dilute HCl in buret (mol/L)** | | | | | **average molarity of dilute HCl (mol/L)** | | | | | **percent difference of trials (%)** | | | | **Average molarity of concentrated unknown solution (mol/L): 4.872 mol/L**
Transcribed Image Text:**Table 1. Titration Data** | | Trial 1 | Trial 2 | Trial 3 | |---------------------------|-----------|-----------|-----------| | **mass of Na₂CO₃ (grams)** | 0.0780g | 0.0810g | 0.0930g | | **moles of Na₂CO₃** | | | | | **V final, volume dilute HCl at endpoint (mL)** | 5.52 mL | 11 mL | 8.52 mL | | **V initial, volume dilute HCl at start (mL)** | 9.77 mL | 17.91 mL | 19.03 mL | | **V total, volume dilute HCl to reach the endpoint (mL)** | 4.25 mL | 6.91 mL | 10.51 mL | | **molarity of dilute HCl in buret (mol/L)** | | | | | **average molarity of dilute HCl (mol/L)** | | | | | **percent difference of trials (%)** | | | | **Average molarity of concentrated unknown solution (mol/L): 4.872 mol/L**
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