Answered: A solution of HNO3HNO3 is standardized…

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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A solution of HNO3HNO3 is standardized by reaction with pure sodium carbonate.

2H++Na2CO3⟶2Na++H2O+CO22H++Na2CO3⟶2Na++H2O+CO2

A volume of 24.78±0.06 mL24.78±0.06 mL of HNO3HNO3 solution was required for complete reaction with 0.8272±0.0007 g0.8272±0.0007 g of Na2CO3Na2CO3, (FM 105.988±0.001 g/mol105.988±0.001 g/mol). Find the molarity of the HNO3HNO3 solution and its absolute uncertainty.

Expert Solution

Step 1

To determine the molarity of the HNO₃ solution and the absolute uncertainty associated with it.

The volume of HNO₃ used to neutralize the $0.8272 \pm 0.007 g$ of Na₂CO₃ is given to be $24.78 \pm 0.06 m L$ . The molar mass of Na₂CO₃ is given to be $105.988 \pm 0.001 g / m o l$ .

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