A land field near a chemical storage is contaminated by a highly toxic substance (hydrogen cyanide, HCN). The soil pH is around 8.1. To avoid severe evaporation of HCN, most of it should be in CN- form (>= 99%). What will be the minimum pH? HCN = CN- + H* pka = 9.2
A land field near a chemical storage is contaminated by a highly toxic substance (hydrogen cyanide, HCN). The soil pH is around 8.1. To avoid severe evaporation of HCN, most of it should be in CN- form (>= 99%). What will be the minimum pH? HCN = CN- + H* pka = 9.2
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![A land field near a chemical storage is contaminated by a highly
toxic substance (hydrogen cyanide, HCN). The soil pH is around 8.1.
To avoid severe evaporation of HCN, most of it should be in CN-
form (>= 99%). What will be the minimum pH?
HCN = CN- + H+
pka = 9.2
The soil is mainly buffered by carbonate species with the
concentration of 0.1 M. How much NAOH (in M) is needed to
achieve the minimum desirable pH?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9d053265-2eeb-4400-ac77-7eaea1488188%2F11d0e174-0704-47d2-9388-6cb223409113%2Fjxejpi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A land field near a chemical storage is contaminated by a highly
toxic substance (hydrogen cyanide, HCN). The soil pH is around 8.1.
To avoid severe evaporation of HCN, most of it should be in CN-
form (>= 99%). What will be the minimum pH?
HCN = CN- + H+
pka = 9.2
The soil is mainly buffered by carbonate species with the
concentration of 0.1 M. How much NAOH (in M) is needed to
achieve the minimum desirable pH?
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