Bases

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Andrea_Torres
Posts: 98
Joined: Sun Sep 15, 2019 12:15 am

Bases

Postby Andrea_Torres » Sun Dec 01, 2019 6:55 pm

It was discussed that a strong bases is completely ionized in water and weak bases are no completely ionized in wate. How do we know which one is completely ionized and which is not?

Jessica Castellanos
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: Bases

Postby Jessica Castellanos » Sun Dec 01, 2019 6:58 pm

You can calculate the concentration of OH-, higher the concentration, stronger the base. I hope this helps!

405318478
Posts: 90
Joined: Sat Jul 20, 2019 12:16 am

Re: Bases

Postby 405318478 » Sun Dec 01, 2019 6:59 pm

You will need to identify first if the base is strong or weak. From that identification you can then conclude if there was complete dissociation.

NRobbins_1K
Posts: 54
Joined: Sat Aug 17, 2019 12:15 am

Re: Bases

Postby NRobbins_1K » Sun Dec 01, 2019 7:01 pm

As with acids, if you are given an equilibrium constant in a problem it is a clue that the base in question is not strong, because an equilibrium constant indicates incomplete dissociation. As with the rest of the clues that we learned that indicate a strong versus a weak acid, you can use this to tell whether the acid is strong or not and therefore whether or not it completely dissociates.

Tahlia Mullins
Posts: 105
Joined: Thu Jul 25, 2019 12:15 am

Re: Bases

Postby Tahlia Mullins » Sun Dec 01, 2019 7:06 pm

I like to think of this in terms of the equations used to find pH which is in terms of the logarithm of the concentration of H+ or OH-, which makes sense conceptually for this question.


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