Given Methylamine (CH:NH2). Calculate pH of a 0.0010 M solution of this base. Given Kb forCH:NH2 is 4.2 x 10-4. Suppose a buffer for such solution was made using boric acid (Ka= 7.2 x 10-10). Calculate the pH of abuffered solution that was made from 0. 10 M boric acid and 0.05 M sodium borate. In a scenario, a basiccontaminant was introduced into washing solution and produces 0.005 M OH. Determine the new pHwhen buffer achieved equilibrium |

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Given Methylamine (CH3NH2). Calculate pH of a 0.0010 M solution of this base. Given Kb for CH:NH2 is 4.2 x 10-4.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter15: Solutions Of Acids And Bases

Section: Chapter Questions

Problem 15.73QE

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Question

Given Methylamine (CH:NH2). Calculate pH of a 0.0010 M solution of this base. Given Kb for
CH:NH2 is 4.2 x 10-4.

Suppose a buffer for such solution was made using boric acid (Ka= 7.2 x 10-10). Calculate the pH of a
buffered solution that was made from 0. 10 M boric acid and 0.05 M sodium borate. In a scenario, a basic
contaminant was introduced into washing solution and produces 0.005 M OH. Determine the new pH
when buffer achieved equilibrium |

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