Spectator Ions?

Moderators: Chem_Mod, Chem_Admin

Rhiannon Imbeah 2I
Posts: 30
Joined: Fri Sep 25, 2015 3:00 am

Spectator Ions?

Postby Rhiannon Imbeah 2I » Tue Jul 26, 2016 11:16 pm

In a section on salts as acids and bases, the elements Na and Cl were referred to as spectator ions? Is there a specific definition for spectator ions or is this simply a colloquial term?
Thank you.

Chem_Mod
Posts: 19137
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 820 times

Re: Spectator Ions?

Postby Chem_Mod » Tue Jul 26, 2016 11:26 pm

Spectator ions are ions which do not participate in the chemical process which you are talking about. For this topic, they will be ions which do not play role in acid-base equilibria.

Rhiannon Imbeah 2I
Posts: 30
Joined: Fri Sep 25, 2015 3:00 am

Re: Spectator Ions?

Postby Rhiannon Imbeah 2I » Tue Jul 26, 2016 11:35 pm

Oh ok. Would this also include the cations that are from groups 1 and 2 on the periodic table?

Laura Rabichow 1J
Posts: 29
Joined: Fri Jun 17, 2016 11:28 am

Re: Spectator Ions?

Postby Laura Rabichow 1J » Tue Jul 26, 2016 11:44 pm

Na+ is a group 1 cation, so yes.

Chem_Mod
Posts: 19137
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 820 times

Re: Spectator Ions?

Postby Chem_Mod » Tue Jul 26, 2016 11:45 pm

Generally yes. But I think Be2+ is an exception because I found that Be2+(aq) + 4H2O (l)-> Be(OH)2(s) + 2H3O+(aq).

Rhiannon Imbeah 2I
Posts: 30
Joined: Fri Sep 25, 2015 3:00 am

Re: Spectator Ions?

Postby Rhiannon Imbeah 2I » Tue Jul 26, 2016 11:46 pm

Thank you!


Return to “Calculating the pH of Salt Solutions”

Who is online

Users browsing this forum: No registered users and 1 guest