Why is the product of $ceAl(OH)3 + NaOH -> Na$ và not $ceNaAlO3H2 + H2O$? Is this an acid-base reaction?


*

*

All reaction sources: Chemiday

As I said in the bình luận section that aluminium hydroxide is amphoteric i.e. It dissolves in acid, forming $ce^3+$ (hexaaquaaluminium) or its hydrolysis products & dissolves in strong alkaline solutions, forming $ce−$ (tetrahydroxidoaluminate). So, when it is dissolved in base, it forms a sodium aluminohydroxo complex salt. Why? Because as
Pritt mentioned, aluminium has vacant orbital for which miễn phí electron can reside there forming a complex salt.

Bạn đang xem: Phase diagram for the naoh

$$ceAl(OH)3 + NaOH(conc.) → Na$$

$$ceAl(OH)3 + 3NaOH → Na3$$

No worries. There is also an acid-base reaction where the two combines to form a salt và water but this occurs at very high temperature và you won"t find this type of reaction occurring in laboratory. This reaction can only be find in industries.

$$ceAl(OH)3 + NaOH -><1000 C> NaAlO2 + 2H2O$$

If only aluminium was used, there would be evolution of hydrogen gas from a very similar exothermic reaction. Lưu ý for simplicity, the species is written $ceNaAlO2$ but it actually contains $ce−$ ion or perhaps the $ce−$ all due to lớn presence of vacant orbital(see sodium aluminate).


nội dung
Improve this answer
Follow
answered Jun 19, 2017 at 5:27
*

Nilay GhoshNilay Ghosh
21.3k2020 gold badges7575 silver badges158158 bronze badges
$endgroup$
1
địa chỉ cửa hàng a comment |

Your Answer


Thanks for contributing an answer lớn girbakalim.net Stack Exchange!

Please be sure to answer the question. Provide details and share your research!

But avoid

Asking for help, clarification, or responding lớn other answers.Making statements based on opinion; back them up with references or personal experience.

Use MathJax khổng lồ format equations. MathJax reference.

To learn more, see our tips on writing great answers.

Xem thêm: Mưa Rào Là Gì ?, Từ Điển Tiếng Việt Mưa Rào Nghĩa Là Gì


Draft saved
Draft discarded

Sign up or log in


Sign up using Google
Sign up using Facebook
Sign up using email and Password
Submit

Post as a guest


Name
e-mail Required, but never shown


Post as a guest


Name
thư điện tử

Required, but never shown


Post Your Answer Discard

By clicking “Post Your Answer”, you agree lớn our terms of service, privacy policy and cookie policy


Not the answer you're looking for? Browse other questions tagged acid-base or ask your own question.


Featured on Meta
Linked
-1
Solubility of metal Hydroxides in excess Sodium Hydroxide (excess NaOH)
Related
5
Is 1.5M NaOH a strong enough base khổng lồ deprotonate benzyl alcohol?
4
What is the conjugate acid of NaOH using the Brønsted-Lowry definition of acids?
0
Why is are weak acid-strong base và strong acid-weak base reactions irreversible?
3
Which acid/base does a strong base/acid react when added to lớn a buffer solution?
Hot Network Questions more hot questions

Question feed
Subscribe khổng lồ RSS
Question feed to subscribe to lớn this RSS feed, copy and paste this URL into your RSS reader.


*

girbakalim.net
Company
Stack Exchange Network
site thiết kế / logo © 2022 Stack Exchange Inc; user contributions licensed under cc by-sa. Rev2022.3.24.41762


girbakalim.net Stack Exchange works best with JavaScript enabled
*

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.