Answer:
The [tex]pH[/tex] of the clean compound is approximately 10.495.
Step-by-step explanation:
If the cleaning ion concentration of the cleaning compound is [tex][H^{+}] = 3.2\times 10^{-11}[/tex], then the [tex]pH[/tex], no unit, of the compound is:
[tex]pH = -\log_{10} [H^{+}][/tex] (1)
[tex]pH = -\log_{10} (3.2\times 10^{-11})[/tex]
[tex]pH = -\log_{10} 3.2 - \log_{10} (10^{-11})[/tex]
[tex]pH = -\log_{10} \frac{32}{10} +11[/tex]
[tex]pH = -\log_{10} 32 + \log_{10} 10 + 11[/tex]
[tex]pH = -\log_{10} 32 +12[/tex]
[tex]pH \approx 10.495[/tex]
The [tex]pH[/tex] of the clean compound is approximately 10.495.