salt solutions

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annikaying
Posts: 94
Joined: Sat Sep 14, 2019 12:16 am

salt solutions

Postby annikaying » Fri Jan 24, 2020 11:56 am

Are salt solutions and buffers the same thing? If not what's the difference?

Leonardo Le Merle 1D
Posts: 56
Joined: Wed Feb 27, 2019 12:16 am

Re: salt solutions

Postby Leonardo Le Merle 1D » Fri Jan 24, 2020 12:34 pm

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.

Miriam Villarreal 1J
Posts: 105
Joined: Sat Aug 17, 2019 12:16 am

Re: salt solutions

Postby Miriam Villarreal 1J » Fri Jan 24, 2020 2:47 pm

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

005384106
Posts: 101
Joined: Sat Aug 24, 2019 12:16 am

Re: salt solutions

Postby 005384106 » Tue Jan 28, 2020 12:11 pm

In class we talked about how HCl and NaOH when mixed make NaCl which neutralizes a solution. What are other examples of this?

005384106
Posts: 101
Joined: Sat Aug 24, 2019 12:16 am

Re: salt solutions

Postby 005384106 » Tue Jan 28, 2020 12:12 pm

Are there any salts that can strongly affect pH? Or do most salts have no affect on pH?


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