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salt solutions

Posted: Fri Jan 24, 2020 11:56 am
by annikaying
Are salt solutions and buffers the same thing? If not what's the difference?

Re: salt solutions

Posted: Fri Jan 24, 2020 12:34 pm
by Leonardo Le Merle 1D
Buffers are generally made of certain pairs of solutes, either a weak acid plus a salt derived from that weak acid or a weak base plus a salt of that weak base. For example, a buffer can be composed of dissolved acetic acid (HC 2H 3O 2, a weak acid) and sodium acetate (NaC 2H 3O 2, a salt derived from that acid). Most buffers contain salts, but not all salt solutions (ex: dissolved NaCl) are buffers.

Re: salt solutions

Posted: Fri Jan 24, 2020 2:47 pm
by Miriam Villarreal 1J
A buffer solution is one which resists changes in pH when small quantities of an acid or an alkali are added to it. An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts - often a sodium salt

Re: salt solutions

Posted: Tue Jan 28, 2020 12:11 pm
by 005384106
In class we talked about how HCl and NaOH when mixed make NaCl which neutralizes a solution. What are other examples of this?

Re: salt solutions

Posted: Tue Jan 28, 2020 12:12 pm
by 005384106
Are there any salts that can strongly affect pH? Or do most salts have no affect on pH?