4. A solution of HNO3 is standardized by reaction with pure sodium carbonate. 2H+ + Na₂CO3 → 2Na* + H₂O + CO₂ use. Calculate the molarity of the HNO3 solution and its absolute uncertainty. The titration data is provided below: Mass of Na₂CO3 (FM 105.988 ± 0.001 g/mol) used: 0.9854 ± 0.0005 g 1st initial buret reading: 1.50 ± 0.03 mL 1st final buret reading: 47.06 ± 0.03 mL 2nd initial buret reading: 2.16 ± 0.03 mL 2nd final buret reading: 18.32 ± 0.03 ml mol 105,988 (1008) = M (004706) M= 3,37828 3.37828(.04706) = M (.00216) M = 73,60278 73.66278 (00216) = M (₁01832) M = 8,67806 √(₁03)² + (103)2 + (03)² + (₁03)² = .00 for volume

4. A solution of HNO3 is standardized by reaction with pure sodium carbonate. 2H+ + Na₂CO3 → 2Na* + H₂O + CO₂ use. Calculate the molarity of the HNO3 solution and its absolute uncertainty. The titration data is provided below: Mass of Na₂CO3 (FM 105.988 ± 0.001 g/mol) used: 0.9854 ± 0.0005 g 1st initial buret reading: 1.50 ± 0.03 mL 1st final buret reading: 47.06 ± 0.03 mL 2nd initial buret reading: 2.16 ± 0.03 mL 2nd final buret reading: 18.32 ± 0.03 ml mol 105,988 (1008) = M (004706) M= 3,37828 3.37828(.04706) = M (.00216) M = 73,60278 73.66278 (00216) = M (₁01832) M = 8,67806 √(₁03)² + (103)2 + (03)² + (₁03)² = .00 for volume

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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