J11c

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Emily 1E
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Joined: Fri Apr 06, 2018 11:03 am

J11c

Postby Emily 1E » Mon Jun 04, 2018 10:33 am

For the reaction 2HI + CaO -> CaI2 + H2O how do you know which is the acid and which is the base?

Chem_Mod
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Re: J11c

Postby Chem_Mod » Mon Jun 04, 2018 3:19 pm

Ca 2+ is a spectator ion; this should simplify things. The acid is the HI that gives off the proton and CaO is the proton acceptor, making it the base.

Gianna Graziano 1A
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Joined: Wed Apr 04, 2018 3:00 am

Re: J11c

Postby Gianna Graziano 1A » Tue Jun 05, 2018 11:55 am

Hi Emily,
Another non perfect way of looking at CaO as the base is knowing that O is oftentimes basic.
Oftentimes, things with H are acidic. This is not always true, but in this case the compound has the name acid in it.

Yadira Flores 1G
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Joined: Wed Nov 15, 2017 3:01 am

Re: J11c

Postby Yadira Flores 1G » Wed Jun 06, 2018 10:37 pm

For the question overall why is it that they didn't specify whether they wanted the Lewis or Bronsted acid or base? Does it matter?

Sarah Brecher 1I
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Joined: Fri Apr 06, 2018 11:02 am

Re: J11c

Postby Sarah Brecher 1I » Wed Jun 06, 2018 10:55 pm

Chem_Mod wrote:Ca 2+ is a spectator ion; this should simplify things. The acid is the HI that gives off the proton and CaO is the proton acceptor, making it the base.


What is a spectator ion in relation to acids and bases? How would you identify one?


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