Question

Which statement about a compound on this pH scale explains why it is the strongest acid?
Missing Metadata

A.
RbOH is a strong acid because it has the greatest pH.

B.
HCl is a strong acid because its pH is the lowest number on the pH scale.

C.
HIO3 is a strong acid because its pH is closest to 7.

D.
HBr is a strong acid because its pH is less than 7.

Answer 1

Well give it a try again. You did well last time.

Answer 2

I don't know, I haven't gotten to this kind of science yet. but I love your profile picture though

Answer 3

thanks lila and okay frost bite

Answer 4

Ok let me provide a hint, this can be solved by math:
We define pH as the negative logarithm to the proton concentration, AKA
\[\Large pH=-\log(H_{3}O^{+})\]
Now a strong acid create a lot of protons guess you know that? fx
\[\Large \sf HCl + H _{2}O \to H _{3}O ^{+} + Cl ^{-}\]

Ok from this we can say that \(H_{3}O^{+}\) is high. A high number is still high (fx log(100) = 10 and log(0.1)=-1)
So we got a high positive number after the logarithm... we put a minus in front of this -> it becomes negative.

to summarize:

Answer 5

What I want you to see is that if we increases the \(H_{3}O^{+}\), pH becomes smaller. :)