A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Abhisar

  • one year ago

Maximum efficiency of cation hydrolysis will be shown by? a) \(\sf Al^{+3}\) b) \(\sf Tl^{+3}\) c) \(\sf Tl^{+1}\) d) \(\sf Ga^{+3}\)

  • This Question is Closed
  1. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The answer is \(\sf Al^{+3}\) but how?

  2. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @chmvijay

  3. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Woodward !!!!! Any Idea?

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Hmmm well I don't really know what cation hydrolysis is, I am guessing it has to do with somehow breaking a bond and acting as a catalyst to allow water to join in to break the bond. But past that, I don't really have much of an idea other than I know aluminum has a smaller ionic radii, thus higher charge density than the other metals. I see that all of these are in the same column of the periodic table, so I'm sure there's some trend we should be aware of here but I have no idea what's really happening here.

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Tell me whatever you know or think about this, maybe we can figure it out, I tried googling this but nothing really came up so I couldn't find anything about this unfortunately! Send me some links or explain some more of this so I can try to learn!

  6. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    one min

  7. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok, so this is basically related with salt hydrolysis in aqueous solution. E.g. if we dissolve a acidic salt BA in water then following can be written, \(\sf BA + H_2O <---> BOH + HA\\or ~B^++A^-+H_2O <---> BOH+H^++A^-\\or~B^++H_2O <---> BOH+H^+\)

  8. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Note, BOH doesn't dissociates because it's weak. This is called cation Hydrolysis. I don't know about how to determine efficiency....

  9. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Looks like hydrolysis is related with cation size....

  10. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    According to one of my books, Hydration Energy \(\propto \)Catonic charge\(\propto\)1/cationic size

  11. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can I say that more the hydration energy more will be efficiency of hydrolysis?

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I'm reading this: http://www.chemguide.co.uk/physical/energetics/solution.html but I am not sure this applies. I'm still not sure I understand what cation hydrolysis is. "Note, BOH doesn't dissociates because it's weak. This is called cation Hydrolysis" Could you explain this more? I also am not really sure what they mean by efficiency, like does it dissociate/cause a bond to break more? Hmm

  13. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Since, BOH is weak acid its degree of dissociation is very small (<<1), that's why it is fair enough to say that BOH formed after hydrolysis remains in undissociated state and that's why the resulting aqueous solution is acidic in nature. If it where some salt of strong acid and strong base, both the acid and base formed after hydrolysis would have equally dissociated and equal amounts of H+ and OH- ions would have been formed and pH of the solution would have been 7

  14. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Umm.. I think efficiency of hydrolysis is related with hydration energy. More the hydration energy greater will be the efficiency and hydration energy is in turn directly proportional to the cationic/anionic charge and inversely proportional to cationic/anionic radius.

  15. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    That explains why Al+3 has greatest efficiency....

  16. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, is that the correct answer? :O

  17. Abhisar
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes!!

  18. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.