• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Acids and hydrogen (1 Viewer)

Drewk

Member
Joined
May 18, 2012
Messages
125
Gender
Male
HSC
2013
quick question,
do all acids contain hydrogen
and when writing net ionic equations(for acids and metals) is the hydrogen ion always positive ?
 

theind1996

Active Member
Joined
Sep 10, 2011
Messages
1,256
Location
Menai
Gender
Undisclosed
HSC
N/A
quick question,
do all acids contain hydrogen
and when writing net ionic equations(for acids and metals) is the hydrogen ion always positive ?
Yes. Hydrogen loses an electron to become positive during bonding.
 

Sindivyn

Member
Joined
Mar 4, 2012
Messages
194
Gender
Male
HSC
2012
While acids do contain a H+ ion, be careful on how you define it. Currently, the accepted theory is Bronsted-Lowry, where an acid is defined as being able to donate a proton (H+).
 

theind1996

Active Member
Joined
Sep 10, 2011
Messages
1,256
Location
Menai
Gender
Undisclosed
HSC
N/A
While acids do contain a H+ ion, be careful on how you define it. Currently, the accepted theory is Bronsted-Lowry, where an acid is defined as being able to donate a proton (H+).
OP's in Year 11 haha.
 

Kimyia

Active Member
Joined
Oct 21, 2011
Messages
1,013
Gender
Female
HSC
2012
Uni Grad
2016
quick question,
do all acids contain hydrogen
and when writing net ionic equations(for acids and metals) is the hydrogen ion always positive ?
for simiplicity, yes all acids contain hydrogen (this definition will probably suffice for year 11) however, the below definition is more correct but you won't meet this until year 12. And yes, the hydrogen ion is always positive.
While acids do contain a H+ ion, be careful on how you define it. Currently, the accepted theory is Bronsted-Lowry, where an acid is defined as being able to donate a proton (H+).
 

someth1ng

Retired Nov '14
Joined
Sep 18, 2010
Messages
5,558
Location
Adelaide, Australia
Gender
Male
HSC
2012
Uni Grad
2021
It depends on how you see an acid. SO3 is an acidic oxide, is it an acid?
SO3 in solution makes H2SO4 which is obviously an acid (sulfuric acid) and contains hydrogen.

You need to be clear that NOT all substances containing hydrogen can produce hydrogen ions (or hydronium ions) in solution and hence, not all substances containing hydrogen are acidic.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top