mushed
Badges: 11
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
Report Thread starter 1 year ago
#1
I know that aluminium oxide reacts with both acids and alkalis, however im confused at when it acts acidic e.g.
Aluminium oxide + sodium hydroxide + water --> NaAl(OH)4
This may be a stupid question but why is the water on the left hand side of the equation? Shouldnt an acid + base give salt + water
0
reply
Pigster
Badges: 20
Rep:
? You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report 1 year ago
#2
(Original post by mushed)
I know that aluminium oxide reacts with both acids and alkalis, however im confused at when it acts acidic e.g.
Aluminium oxide + sodium hydroxide + water --> NaAl(OH)4
This may be a stupid question but why is the water on the left hand side of the equation? Shouldnt an acid + base give salt + water
The water is there to make everything balance.

Usually a salt and water are formed, but not always, e.g. ammonia + sulfuric acid.

I think you'll agree that this reaction is rather unusual in its own right, a GCSE student would think Al2O3 were a metal oxide and think this reaction is base + base + water -> base (since a metal hydroxide is a base).
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Have you ever considered or are you currently considering an apprenticeship?

Yes, I am actively considering an apprenticeship (79)
13.57%
I am actively considering an alternative to uni that isn't an apprenticeship (11)
1.89%
I have considered an apprenticeship but it's not for me (147)
25.26%
I am considering a degree apprenticeship (47)
8.08%
I haven't considered an apprenticeship (280)
48.11%
Something else (let us know in the thread!) (18)
3.09%

Watched Threads

View All