owlet
  • owlet
Strong, weak, or nonelectrolyte? how will I know? propyl amine, potassium iodide and carbonic acid, what kind of electrolyte are they?
Chemistry
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
owlet
  • owlet
@aaronq @Vocaloid
owlet
  • owlet
@Photon336 @Shalante
Jhannybean
  • Jhannybean
write these all out as chemical compounds first

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owlet
  • owlet
ok.. propyl amine: \(CH_3CH_2CH_2NH_2\) potassium iodide: KI and carbonic acid: \(H_2CO_3\)
owlet
  • owlet
then..?
owlet
  • owlet
I think KI is a strong electrolyte.. because of K+ and I-
Photon336
  • Photon336
@owlet electrolytes usually produce ions in solution
Jhannybean
  • Jhannybean
Im not too sure about propyl amine, but if you look at it's structure you know that \(\sf CH_3CH_2CH_2\mathbf{NH_2}\) have hydrogen bonds, and hydrogen bonds take a lot of energy to break. You are right about \(\sf KI\), therefore it's a strong electrolyte because it has an ionic bond, and ionic bonds are soluble in water. for Carbonic Acid, \(\sf H_2CO_3\), ask yourself whether it's a strong acid, if it's a strong acid, then it's a strong electrolyte
Photon336
  • Photon336
I think acids are also considered electrolytes. and their strength depends on how many H+ ions are produced.
Jhannybean
  • Jhannybean
for acids and bases, the strength of their electrolytes depends on whether theyre a strong acid, or a strong base
owlet
  • owlet
okay.. just wanted to confirm.. if a substance is a strong acid/base then they are strong electrolytes?
Photon336
  • Photon336
yeah, because that means more ions are produced
Jhannybean
  • Jhannybean
Acetate, \(\sf HC_2H_3O_2\) is a weak electrolyte compared to let's say... nitric acid, \(\sf HNO_3\)
owlet
  • owlet
what about organic compounds, like glucose? they have H bonds also..?
Photon336
  • Photon336
|dw:1443922500887:dw| @owlet question to you is that compound above hexane would that be considered an electrolyte?
Photon336
  • Photon336
and why?
owlet
  • owlet
i think it is nonelectrolyte because.. it doesn't ionize in water..?
Photon336
  • Photon336
yep @owlet another one, which one is a better electrolyte and why? |dw:1443922689755:dw|
owlet
  • owlet
I'm not sure about that one
owlet
  • owlet
both of them will ionize, aren't they?
Photon336
  • Photon336
=]
owlet
  • owlet
acetic acid is a strong acid, so it should be the one i think
Photon336
  • Photon336
what does acidic strength mean? and how does this relate to electrolyte strength?
owlet
  • owlet
hmm acidic strength has something to do with loosing H+ ? it is related to electrolyte strength because i think.. if the acid is strong, it will ionize completely(loose all H+) .. i don't know anymore
owlet
  • owlet
but acetic acid and sulfuric acid are both strong acids though??
Photon336
  • Photon336
yep strong acid will produce more H+
Photon336
  • Photon336
@owlet acetic acid is a weak acid, sulfuric acid is a strong acid
Photon336
  • Photon336
so based off of this which would be the better electrolyte?
owlet
  • owlet
ohh so it is sulfuric acid? quick question.... i know this may sound dumb.. but why is acetic acid a weak one?
Photon336
  • Photon336
yep =]
Photon336
  • Photon336
well because it loses some of it's protons, not all. have you heard of something called Ka, acid dissociation constant. NOT pKA \[HA --> H ^{+} + A ^{-} | Ka = \frac{ [H ^{+}][A ^{-}] }{ [KA] } \]
owlet
  • owlet
yeah I remember doing that. I completely forgot everything, that's why I'm revising everything :3
Photon336
  • Photon336
so @owlet would a strong acid have a High Ka or low, and how could you tell this from looking at the equation?
owlet
  • owlet
They should have a high Ka. The larger the Ka, the larger the [H+] ?
owlet
  • owlet
If [H+] is high, then it means the acid can donate more?
Photon336
  • Photon336
=] yep
Photon336
  • Photon336
like unfortunately, I was told in my chem classes to just memorize that H2SO4 is a strong acid, I don't like that but that's what I was told lol. but it's a strong acid b/c it's Ka is high. which means it's pKA meaning -log[Ka] will be small.
owlet
  • owlet
yes! ok i think i'm getting it now.. yeah same thing, we have to like memorize a table of strong & weak acids and bases before doing the solving part. Probably that's the reason why forgot everything lol let me try another substance.. carbonic acid... will it be weak?
Photon336
  • Photon336
In my classes they taught me that well yeah, These are your strong acids H2SO4 HNO3 HCL HBr HI H3PO4 i think i'm missing one. everything else is weak
owlet
  • owlet
how about HF?
Photon336
  • Photon336
that's a weak acid
owlet
  • owlet
oh yeah one more thing, before i closed this question.. how about alcohols also?
Photon336
  • Photon336
F- i think is very unstable and it's going to react readily
Photon336
  • Photon336
I'm not too sure about alcohols but I think they would be weak electrolytes
Photon336
  • Photon336
at least in water though could be different
owlet
  • owlet
F is super negative so it will attach to H+ more than the other group 17 i think, so probably it is weak.. hmm okay, i will try to read more to find out about alcohols. Thanks a lot for the help! :)
Photon336
  • Photon336
no problem
Jhannybean
  • Jhannybean
\(\color{#0cbb34}{\text{Originally Posted by}}\) @Photon336 In my classes they taught me that well yeah, These are your strong acids H2SO4 HNO3 HCL HBr HI H3PO4 i think i'm missing one. everything else is weak \(\color{#0cbb34}{\text{End of Quote}}\) You were pissing perchloric acid i believe, \(\sf HClO_4\)
Jhannybean
  • Jhannybean
\(\sf H_3PO_4\) is a weak acid :P
Photon336
  • Photon336
this is what happens when you just memorize stuff, I always forget one of them BTW how do you quote lol? @Jhannybean
Jhannybean
  • Jhannybean
Ohh Jaynator has a script you add to chrome for OS that allows you quote, and post images in the drawing tool as well as use different colors when drawing things as well. I'll have to find the link to the script, or you can ask Nnesha :P
Photon336
  • Photon336
if you find it please send that to me!
Jhannybean
  • Jhannybean
sure thing!
owlet
  • owlet
since you guys are still here.... HNO2 vs.HNO3, which is a stronger one? HNO3 right?
owlet
  • owlet
nvm, got it

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