A 0.6892 g mixture of KCN (MW = 65.116 g/mol) and NaCN (MW = 49.005 g/mol) was dissolved in water. AgNO, was added to the solution, precipitating all of the CN¯ in solution as AgCN (MW = 133.886 g/mol). The dried precipitate weighed 1.611 g. Calculate the weight percent of KCN and NaCN in the original sample. 4.5 KCN wt% = % Incorrect NaCN wt% = % Incorrect

A 0.6892 g mixture of KCN (MW = 65.116 g/mol) and NaCN (MW = 49.005 g/mol) was dissolved in water. AgNO, was added to the solution, precipitating all of the CN¯ in solution as AgCN (MW = 133.886 g/mol). The dried precipitate weighed 1.611 g. Calculate the weight percent of KCN and NaCN in the original sample. 4.5 KCN wt% = % Incorrect NaCN wt% = % Incorrect

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 0.5099 g mixture of KCN (MW 65.116 g/mol) and NaCN (MW = 49.005 g/mol) was dissolved in water. AgNO, was added to the solution, precipitating all of the CN in solution as AgCN (MW : 133.886 g/mol). The dried precipitate weighed 1.184 g. Calculate the weight percent of KCN and NaCN in the original sample. KCN wt% = NaCN wt% = = % %