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B. Determination of the Molar Mass of an Unknown Acid, HA Chemical Reactions: Molecular Equation: HA(ag) + NaOH(ag) - NaA(ag) + H,0(1) Net Ionic Equation: HA(ag) + OH(ag) -– H,O(1) + A'(ag) Details Trial 1 Trial 2 Trial 3 Mass of container plus contents (g) Mass of container less contents (g) Mass (g) of Unknown sample Obtained Average Molarity of NaOH Initial Buret Reading (mL) Final Buret Reading (mL) Volume (mL) NaOH Delivered No. of mmol NaOH 27.8792 28.7518 28.4300 27.4518 28.3217 28.0013 0.4274 0.4301 0.1156 M 0.50 0.4287 1.20 1.00 19.30 18.67 19.27 x 103 х 103 No. of Moles of Unknown Acid, HA Molar Mass (g/mole) Average Molar Mass (g/mol) Deviation х 103

B. Determination of the Molar Mass of an Unknown Acid, HA Chemical Reactions: Molecular Equation: HA(ag) + NaOH(ag) - NaA(ag) + H,0(1) Net Ionic Equation: HA(ag) + OH(ag) -– H,O(1) + A'(ag) Details Trial 1 Trial 2 Trial 3 Mass of container plus contents (g) Mass of container less contents (g) Mass (g) of Unknown sample Obtained Average Molarity of NaOH Initial Buret Reading (mL) Final Buret Reading (mL) Volume (mL) NaOH Delivered No. of mmol NaOH 27.8792 28.7518 28.4300 27.4518 28.3217 28.0013 0.4274 0.4301 0.1156 M 0.50 0.4287 1.20 1.00 19.30 18.67 19.27 x 103 х 103 No. of Moles of Unknown Acid, HA Molar Mass (g/mole) Average Molar Mass (g/mol) Deviation х 103

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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exolain how to solve trial one so i can do the remaining trials on my own. thanks

B. Determination of the Molar Mass of an Unknown Acid, HA Chemical Reactions: Molecular Equation: HA(ag) + NaOH(ag) + H,O() NaA(ag) Net Ionic Equation: HA(ag) + OH(ag) -→ H,O(1) + A(ag) Details Trial 1 Trial 2 Trial 3 Mass of container plus contents (g) Mass of container less contents (g) Mass (g) of Unknown sample Obtained Average Molarity of NaOH Initial Buret Reading (mL) Final Buret Reading (mL) Volume (mL) NAOH Delivered 27.8792 28.7518 28.4300 27.4518 28.3217 28.0013 0.4274 0.4301 0.1156 M 0.4287 1.20 0.50 1.00 19.30 18.67 19.27 No. of mmol NaOH х 103 No. of Moles of Unknown Acid, HA Molar Mass (g/mole) Average Molar Mass (g/mol) Deviation х 103 х 103 Standard Deviation Coefficient of Variation (%RSD)
Transcribed Image Text:B. Determination of the Molar Mass of an Unknown Acid, HA Chemical Reactions: Molecular Equation: HA(ag) + NaOH(ag) + H,O() NaA(ag) Net Ionic Equation: HA(ag) + OH(ag) -→ H,O(1) + A(ag) Details Trial 1 Trial 2 Trial 3 Mass of container plus contents (g) Mass of container less contents (g) Mass (g) of Unknown sample Obtained Average Molarity of NaOH Initial Buret Reading (mL) Final Buret Reading (mL) Volume (mL) NAOH Delivered 27.8792 28.7518 28.4300 27.4518 28.3217 28.0013 0.4274 0.4301 0.1156 M 0.4287 1.20 0.50 1.00 19.30 18.67 19.27 No. of mmol NaOH х 103 No. of Moles of Unknown Acid, HA Molar Mass (g/mole) Average Molar Mass (g/mol) Deviation х 103 х 103 Standard Deviation Coefficient of Variation (%RSD)
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