mchalo243 mchalo243

13-05-2021
Chemistry

contestada

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

What is the pH of a 40 x 1010 M HCl solution class=

Respuesta :

keijosalonen keijosalonen

21-05-2021

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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