Hw Problem 6D.11

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Qilan Li 4I
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Joined: Mon Jun 17, 2019 7:23 am

Hw Problem 6D.11

Postby Qilan Li 4I » Sat Dec 07, 2019 8:20 pm

For 6D.11, I understand that the ions in the salt would indicate whether the pH will be less or more than 7 (or neutral). However, I used the charts in the textbook to see whether they are ions from strong/weak acids or bases. Do you memorize the different cations and anions for the final? Does anyone have any tips or guides?

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Re: Hw Problem 6D.11

Postby asannajust_1J » Sat Dec 07, 2019 8:29 pm

you should know the strong acids and bases, so you will know that everything else would be weak.

Baoying Li 1B
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Re: Hw Problem 6D.11

Postby Baoying Li 1B » Sat Dec 07, 2019 8:33 pm

Memorize all the strong acids and weak strong. Others will be weak acids and weak bases.

Debora Fernandez Clemente_ 4H
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Re: Hw Problem 6D.11

Postby Debora Fernandez Clemente_ 4H » Sat Dec 07, 2019 9:31 pm

what is the complete list of strong acids?

Jordan Ziegler 2J
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Re: Hw Problem 6D.11

Postby Jordan Ziegler 2J » Sat Dec 07, 2019 9:57 pm

A good acronym for remembering all of the strong acids is B I C P E N S
- B --> HBr (hydrobromic acid)
- I --> HI (hydroiodic acid)
- C --> HCl (hydrochloric acid)
- P E --> HClO4 (perchloric acid)
- N --> HNO3 (nitric acid)
- S --> H2SO4 (sulfuric acid)

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