Respuesta :

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Answer:

[H3O+]= 2.88×10^-12M

pH= 11.54

Explanation:

pOH= -log[OH] = -log[3.5*10^-3]= 2.46

pH= 14- pOH= 14-2.46= 11.54

High pH means that a solution is basic while high pOH means that a solution is acidic,

Hence the solution is basic