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What is the pH of a 10^-4 M HCl solution?Answers to choose:•1•2•3•4

What Is The PH Of A 104 M HCl SolutionAnswers To Choose1234 class=

Sagot :

Hydrochloric acid is a strong acid. This means that in a solution all the H+ ions will be released. Also, one mole of HCl has one hydrogen atom, so we can assume that the concentration of HCl is equal to the concentration of H+ ions.

On the other hand, the definition of pH tells us:

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

Where [H+] is the ions H+ concentration.

H+ concentration is 10^-4M. If we replace in the equation we will have:

[tex]\begin{gathered} pH=-log10^{-4}M=4 \\ pH=4 \end{gathered}[/tex]

answer: The pH of the solution is 4

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