Concentration of HNO3 Solution 0.4938m Concentration of NaOH Solution 0.0992m Trial 1 Trial 2 1.23g 1.230 25ML * Mass of antacid tablet 25AL Volume of HNO3 (aq) added to antacid 0,01 19.3 0.01 Initial buret reading, (+0.01 mL) 17.8 Final buret reading, (±0.01 mL) 19.2 17.7 Net Volume Calculations: 0.9938mel HNO 2SaL *1000ml : 0.0123 molc HNO 0.0992 NoH 19.2 v = 0.0019 molc HNO, 4 7.7ן l000m L 0.01041S NINO- 0.010445 - Results 63 mg S28.5ng Mass of CaCO3 in antacid Average mass CaCO3 in antacid Percent Error (based on actual CaCO3 mass on back of tablet container) S00mg 5.7 % 42% 43% -%CaCO3 in antacid 42.5% Average %CaCO3 in antacid Standard deviation of %CaCO3 in antacid

Concentration of HNO3 Solution 0.4938m Concentration of NaOH Solution 0.0992m Trial 1 Trial 2 1.23g 1.230 25ML * Mass of antacid tablet 25AL Volume of HNO3 (aq) added to antacid 0,01 19.3 0.01 Initial buret reading, (+0.01 mL) 17.8 Final buret reading, (±0.01 mL) 19.2 17.7 Net Volume Calculations: 0.9938mel HNO 2SaL *1000ml : 0.0123 molc HNO 0.0992 NoH 19.2 v = 0.0019 molc HNO, 4 7.7ן l000m L 0.01041S NINO- 0.010445 - Results 63 mg S28.5ng Mass of CaCO3 in antacid Average mass CaCO3 in antacid Percent Error (based on actual CaCO3 mass on back of tablet container) S00mg 5.7 % 42% 43% -%CaCO3 in antacid 42.5% Average %CaCO3 in antacid Standard deviation of %CaCO3 in antacid

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.16QAP

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