mchalo243 mchalo243

Today at 10:42 AM
Chemistry

Answered

What is the pH of a 4.0 x 10-10 M HCl solution?

What is the pH of a 4.0 x 10-10 M HCl solution? class=

Answer :

keijosalonen keijosalonen

Today at 10:46 AM

Answer: pH = 9.40

Explanation: pH = - log[H3O^+] .

HCl reacts with water : HCl + H2O -> Cl^- + H3O^+

So [H3O^+] = c(HCl) = 4.0· 10^-10 M

pH = - log(4.0· 10^-10 M) = 9.398

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