1. with respect to ion count, why is water considered to be neutral?

2. How do the number of H+ and OH- ions compare after
a.) HI is added to water?
b.)KBr is added to water?
c.)KOH is added to water?

3. Give the Arrhenius definitions for salts.

2 answers

ALL compounds are neutral. I don't understand what you mean by ion count; water has no ions other than the small concns of H^+ and OH^-. Both of those are 1E-7 M in pure H2O; perhaps that's what you mean by ion count but those exactly neutralize each other and the count is equal.

2.
a. If HI is added to water you increase the H^+, decrease the OH^-, and increase I^-
b. KBr added to H2O has to effect on H^+ or OH^-
c. KOH added to water increases OH^-, decreases H^+, and increases K^+.

3. I'm not sure I ever learned a definition of an Arrhenius salt. I believe if it wasn't an Arrhenius acid and not an Arrhenius base, it was a salt. I remember in freshman chem I was told a salt (and we studied Arrhenius acids and bases and no other kind then) was the combination of a cation (other than H^+) and an anion (other than OH^-)

d.
You are a lifesaver! Thank u so much !
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