Respuesta :

TheBilogis
Im assuming that 10-9, 10-10... is 10 to the power of 9 and 10 to the power of 10, respectively.

In the pH scale, acids are pH<7 and bases have pH>7. Each increase in pH makes something less acidic (or more basic) by 10.
Therefore [H+]=1x10^12 is the most basic

Answer:

The strong base  is with [tex]H^+[/tex] concentration equals to [tex]1 \times 10^{-12} M[/tex].

Explanation:

The pH of the solution is defined as negative logarithm of [tex]H^+[/tex] ions in a solution.Higher the [tex]H^+[/tex] ions concentration lower will be the value of pH and more acidic will be the solution.

[tex]pH=-\log[H^+][/tex]

1)[tex] [H+] = 1 \times 10^{-9} M[/tex]

[tex]pH=-\log[1 \times 10^{-9} M]=9 [/tex] Most acidic solution

2) [tex][H+] = 1 \times 10^{-11} M[/tex]

[tex]pH=-\log[1 \times 10^{11} M]=11 [/tex]

3) [tex] [H+] = 1 \times 10^{-10} M[/tex]

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

4)[tex] [H+] = 1 \times 10^{-12} M[/tex]

[tex]pH=-\log[1 \times 10^{-12} M]=12 [/tex] Most basic solution

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