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mass of Na2CO3 (grams) moles of Na2CO3 V final, volume dilute HCl at endpoint (mL) V initial, volume dilute HCl at start (mL) V total, volume dilute HCl to reach the endpoint (mL) molarity of dilute HCI in buret (mol/L) average molarity of dilute HCI (mol/L) percent difference of trials (%) Average molarity of concentrated unknown solution (mol/L) Trial 1 0.0780g 5.52mL 9.77m2 14..85ml Trial 2 0.0810g 11m² 17,91m4 6.91ml 4.872 mol/L (aq) 84.001 g/mol 58.44 g/m Trial 3 0.0930g. 10.3mL 17.13mL 6.83 me

mass of Na2CO3 (grams) moles of Na2CO3 V final, volume dilute HCl at endpoint (mL) V initial, volume dilute HCl at start (mL) V total, volume dilute HCl to reach the endpoint (mL) molarity of dilute HCI in buret (mol/L) average molarity of dilute HCI (mol/L) percent difference of trials (%) Average molarity of concentrated unknown solution (mol/L) Trial 1 0.0780g 5.52mL 9.77m2 14..85ml Trial 2 0.0810g 11m² 17,91m4 6.91ml 4.872 mol/L (aq) 84.001 g/mol 58.44 g/m Trial 3 0.0930g. 10.3mL 17.13mL 6.83 me

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: Titration Data** | Parameter | Trial 1 | Trial 2 | Trial 3 | |----------------------------------------------------------|-----------|-----------|-----------| | **Mass of Na₂CO₃ (grams)** | 0.0780 g | 0.0810 g | 0.0930 g | | **Moles of Na₂CO₃** | | | | | **V final, volume dilute HCl at endpoint (mL)** | 5.52 mL | 11 mL | 10.3 mL | | **V initial, volume dilute HCl at start (mL)** | 9.77 mL | 17.91 mL | 17.13 mL | | **V total, volume dilute HCl to reach the endpoint (mL)**| 14.25 mL | 6.91 mL | 6.83 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)** | | | | **Additional Information:** - The average molarity of the concentrated unknown solution is noted as **4.872 mol/L** at the bottom of the table. This table provides a detailed record of a titration experiment involving Na₂CO₃ and dilute HCl, listing measurements across three trials.
Transcribed Image Text:**Table: Titration Data** | Parameter | Trial 1 | Trial 2 | Trial 3 | |----------------------------------------------------------|-----------|-----------|-----------| | **Mass of Na₂CO₃ (grams)** | 0.0780 g | 0.0810 g | 0.0930 g | | **Moles of Na₂CO₃** | | | | | **V final, volume dilute HCl at endpoint (mL)** | 5.52 mL | 11 mL | 10.3 mL | | **V initial, volume dilute HCl at start (mL)** | 9.77 mL | 17.91 mL | 17.13 mL | | **V total, volume dilute HCl to reach the endpoint (mL)**| 14.25 mL | 6.91 mL | 6.83 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)** | | | | **Additional Information:** - The average molarity of the concentrated unknown solution is noted as **4.872 mol/L** at the bottom of the table. This table provides a detailed record of a titration experiment involving Na₂CO₃ and dilute HCl, listing measurements across three trials.
Expert Solution
Step 1

Molar mass of Na2CO3 = 105.99 g/mol 

Required conversion factor is: 1 mol Na2CO3 = 105.99 g Na2CO3 

The balanced equation for the reaction of Na2CO3(aq) and HCl(aq) is:

Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l) 

Required mole ratio is:

2 mol HCl1 mol Na2CO3

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