A 0.1504-g sample of impure Na₂CO₃ (106.00g/mol) was analyzed via Volhard method. After adding 50.0 mL of 0.07106 M AgNO₃, the sample was back-titrated with 0.06485 M KSCN requiring 11.69 mL to reach the end point. What is the purity of the Na₂CO₃ sample? CHOICES: 98.5% 95.7% 89.0% None of these
A 0.1504-g sample of impure Na₂CO₃ (106.00g/mol) was analyzed via Volhard method. After adding 50.0 mL of 0.07106 M AgNO₃, the sample was back-titrated with 0.06485 M KSCN requiring 11.69 mL to reach the end point. What is the purity of the Na₂CO₃ sample? CHOICES: 98.5% 95.7% 89.0% None of these
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 75QAP: A student is given 0.930 g of an unknown acid, which can be either oxalic acid, H2C2O4, or citric...
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A 0.1504-g sample of impure Na₂CO₃ (106.00g/mol) was analyzed via Volhard method. After adding 50.0 mL of 0.07106 M AgNO₃, the sample was back-titrated with 0.06485 M KSCN requiring 11.69 mL to reach the end point. What is the purity of the Na₂CO₃ sample?
CHOICES:
98.5%
95.7%
89.0%
None of these
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