Answered: 60ml of 0.1M HCN was titrated with 0.1M…

60ml of 0.1M HCN was titrated with 0.1M Na OH. Calculate the pHat a) initial b) 20ml c) 30ml d) 60ml and e) 80 ml of the titrant was added. Ka of HCN = 6. 2 x 1010 HCN + H20 €→ H,0* + CN'

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter7: Neutralization Titrations And Graphical Representations

Section: Chapter Questions

Problem 7P

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

8. 60ml of 0.1M HCN wastitrated with 0.1M Na OH. Calculate the pHat a) initial b) 20ml c) 30ml d) 60ml and
e) 80 ml of the titrant was a dded. Ka of HCN = 6.2 x 10:10
HCN + H20 €> H30* + CN

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