Question
Determine wether the following acids are strong or weak?
NOTE: all numbers in the chemical compounds below are subscripts belonging to the element before it, NOT COEFFICIENTS.
a.)HCl
b.)H2SO3
c.)HNO2
d.)H3PO2
e.)HNO4
f.)H2SO5
g.)HI
NOTE: all numbers in the chemical compounds below are subscripts belonging to the element before it, NOT COEFFICIENTS.
a.)HCl
b.)H2SO3
c.)HNO2
d.)H3PO2
e.)HNO4
f.)H2SO5
g.)HI
Answers
DrBob222
If you don't already have the common acids memorized, look in a set of ionization tables in the back of your book. If the Ka is listed it is a weak acid, If it isn't listed, it is a strong acid (or the table is incomplete). The common acids are HCl HBr HI HClO4 HClO3 H2SO4 HNO3. For H2SO4 it is only for the first ionization; the second one is relatively strong but still weak since k2 = about 10^-2.
I was unable to find anything on H2SO5 but my best guess is that it is weak. And I haven't heard of HNO4, perhaps you meant HNO3.
I was unable to find anything on H2SO5 but my best guess is that it is weak. And I haven't heard of HNO4, perhaps you meant HNO3.