rules for determining

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Karina Rodriguez 2H
Posts: 50
Joined: Wed Sep 30, 2020 9:34 pm

rules for determining

Postby Karina Rodriguez 2H » Sat Dec 12, 2020 9:57 pm

What rules do I need to keep in mind to tell whether a salt is acidic or basic?

Margia Adriano 2A
Posts: 102
Joined: Wed Sep 30, 2020 10:00 pm

Re: rules for determining

Postby Margia Adriano 2A » Sat Dec 12, 2020 11:13 pm

Hi! What I do is first look at the different atoms in the salt/compound. In order to determine whether it is acidic, basic, or neutral, you have to determine if it contains a conjugate acid or base. For example, NaCN is a basic salt. The CN- anion came from HCN, which is an acid. In other words, CN- is the conjugate base/anion of HCN and that's how you know that it is a basic salt. I hope this helps!

705383815
Posts: 101
Joined: Wed Sep 30, 2020 10:10 pm

Re: rules for determining

Postby 705383815 » Sat Dec 12, 2020 11:24 pm

It depends on whether or not the conjugate acid or the conjugate base from the salt is the component of a strong acid or a strong base and whether the resulting conjugate substances are stronger than each other or not. For example, if a salt has a nitrate in it, then it is likely going to cause the solution to become basic since the nitrate ion will attract H+ from the water.

Nancy Yao
Posts: 99
Joined: Wed Sep 30, 2020 9:38 pm

Re: rules for determining

Postby Nancy Yao » Sat Dec 12, 2020 11:28 pm

Strong Acid + Strong Base -> neutral salt

Strong Acid + Weak Base -> acidic salt

Strong Base + Weak Acid -> basic salt

Isaias Gomez D3A
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Joined: Wed Sep 30, 2020 9:37 pm
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Re: rules for determining

Postby Isaias Gomez D3A » Sat Dec 12, 2020 11:50 pm

A Strong Acid + a Strong Base = a neutral salt

A Strong Acid + a Weak Base = a acidic salt

A Strong Base + a Weak Acid = a basic salt

Sophia Kalanski 1A
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Re: rules for determining

Postby Sophia Kalanski 1A » Sun Dec 13, 2020 1:07 am

So when I do this, I first separate the salt into its anion and its cation. From there, I try to see whether or not one of them belong to a strong acid or base and if so, they do not affect the pH of the solution. The one that does belong to the pH can affect it.

Nick Saeedi 1I
Posts: 112
Joined: Wed Sep 30, 2020 9:39 pm

Re: rules for determining

Postby Nick Saeedi 1I » Thu Dec 17, 2020 12:34 am

Look to see if it donates or accepts hydrogen ions.

305561744
Posts: 99
Joined: Fri Sep 24, 2021 7:14 am

Re: rules for determining

Postby 305561744 » Tue Nov 23, 2021 12:25 pm

Are all acids/bases salts? What part of their composition makes them a salt?


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