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Essay

Poverty

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Issue:

English

 

Written by:

Janet M

 

Date added:

August 20, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 340

 

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8686 times

 

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(Give an example) ? How does a buffer solution work? Consider the buffer is a mixture of CH3COOH and CH3COONa. The weak acid in only slightly dissociated in solution, but the salt is fully dissociated into its ions, the concentration of ethanoate ions is high: NaCH3COO (aq) Na+ (aq) + CH3COO- CH3COOH (aq) CH3COO-(aq) + H+ (aq) A) - Adding acid to the buffer solution: If an acid is added, it means we are adding H+ (aq)...
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So, the concentration of H+ ions remains unchanged. CH3COO-(aq) + H+ (aq) CH3COOH (aq) ? If needed, extra CH3COO - ions are provided by the dissociation of NaCH3COO (the salt). B) - Adding base to the buffer solution: If a base is added, it means we are adding OH- (aq). Extra OH- ions coming from the base are removed as they reaction with the H+ ions (provided by buffer) to form water...
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