Buffer solution 13 is prepared from a strong base sodium hydroxide and potassium chloride salt .. While the definition of buffer is contain from weak base or weak acid with their salts .. So why is it called buffer and it does not meet the definition, as well when preparing an acidic buffer solution pH1 the same case is prepared from strong acid and Potassium chloride salt????
You are perfectly right, in such ocasion it is suitable to call the solution a controlling solution, not buffer.
You may see another similar example in acidic media, the popular Clark and Lubbs controlling solutions, pH 1.0-1.5, mixing HCl and KCl...
Dear Sumayha Muhammed you are absolutely right. Normally a buffer contains weak bases or weak acids in combination with their salts. However, it perhaps depends on the context in your case. Perhaps it is meant to "buffer" (neutralize) some excess of acid.
thank you Frank T. Edelmann .. I'm asking too if there's any differences if pH1 or pH13 prepared from strong acid or strong base only with out any salt
Dear Sumayha Muhammed that's a good question. Actually, I do not see what the role of the added sodium chloride could be.
You may want to check my post at this RG discussion: https://www.researchgate.net/post/Im_looking_for_a_good_pH_13_buffer_recipe_for_hydrolysis_experiment
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