A.) acetic acid only
B.) acetic acid or hydrochloric acid
C.) potassium acetate only
D.) sodium chloride or potassium acetate
E.) hydrochloric acid only
a buffer is a combination of a weak acid with its conjugate base. Acetic acid and acetate anion is a buffer pair. Theacetic acid can come from acetic acid itself or can be generated in situ from sodium acetate and hydrochloric acid.
NaOOCCH3 + H+ ——- CH3 COOH so BSource(s): Ph.D. Biochem BS Chem
i might say that there could be a typo or some kind of mistake using fact of actuality, from what i understand, in certainty the launch of the acetate ion from the inclusion of sodium acetate might want a buffer answer. for that reason, i might say that (a) ought to be the appropriate answer. in spite of the reality that, NaOH ought to, for yet another excuse that i’m now no longer wakeful of, want a buffer answer. yet I honestly have by skill of no skill heard of one in each and every of those solid judgment and that i doubt no remember if something so particular ought to be examined of you.
The answer is A. I always used that buffer in my lab. It is called Acetate buffer
B. Both a weak acid and a strong acid can provide buffering