Respuesta :

W0lf93
pH value of 0.10 m of HBr, a strong acid. 
When dissolved in water it gives H+ and Br-, so H+ is the concentration.  
pH = - log H+) => pH = - log (0.10) = -(-1) = 1 
HF and HC2H3O2 are weak acids. They both will have pH value greater than 1 as they ionize in solution.
lublana

Answer:

A.0.10 HBr

Explanation:

We are given that some solutions

We have to find the solution which have lowest pH

1.0.10 m HBr

We know that

[tex]p^H=-[log H^+][/tex]

[H+]=0.10=[tex]1\times 10^{-1}[/tex]

[tex]pH=-[log(1\times 10^{-1})][/tex]

[tex]Log a^b=blog a[/tex]

[tex]pH=-(log 1-log 10)[/tex]

We know that log 1=0 abd log 10=1

Then we get

[tex]pH=1[/tex]

HBr is strongest acid ,therefore, it completely ionize into its ions.

But HF and [tex]HC_2H_3O_2[/tex] are weaker acids and do not ionize completely into its ions.

The pH of these two acids are greater than one.

Hence, the pH of HBr is lowest.

Option A is true.