Classify each substance as either arrhenius acid or base:
A) HF (aq)
B) Ba(OH)2 (aq)
C) H2SO4 (aq)
D) NH4OH (aq)
My work
A) arrehenius acid
B) arrhenius base
C) arrhenius acid
D) arrhenius base
Am i right
2 answers
Looks good to me.
It looks good to me too; however, I should point out that it has been shown that NH4OH does not exist. It is NH3(aq).
In water solution it does this
NH3 + HOH --> NH4^+ + OH^-
It still is an Arrhenius base because it produces OH^- in solution. I don't know the exact date but as early as 1980 there was strong evidence that NH4OH did not exist. Infrared spectroscopy showed only the NH3 gas structure and water structure and no extra bands for "NH4OH" molecule. There is an article in J Chem Ed (1989) explaining WHY it can't exist. Good luck with your chemistry.
In water solution it does this
NH3 + HOH --> NH4^+ + OH^-
It still is an Arrhenius base because it produces OH^- in solution. I don't know the exact date but as early as 1980 there was strong evidence that NH4OH did not exist. Infrared spectroscopy showed only the NH3 gas structure and water structure and no extra bands for "NH4OH" molecule. There is an article in J Chem Ed (1989) explaining WHY it can't exist. Good luck with your chemistry.
1 answer