Respuesta :

pOH = -LOG([OH])  

pOH = -LOG(4.5*10^-9)  

pOH = 8.34  

pH + pOH = 14  

pH = 14 - 8.34 = 5.65

hope this helps!

(:

The pH of a solution is 5.69

What is pH value ?

pH is the measure of acidity or alkalinity of a substance , It has a value in the range of 0 to 14 , where 0 to 6 is acid range , 7 is neutral and 8-14 is basic range.

Water has a pH of 7.

pH can also be defined as the measure of [H⁺] ion concentration in an acid

pH = - log[H⁺]

[H⁺][OH⁻] = 1 * 10⁻¹⁴

[H⁺] = (1 * 10⁻¹⁴) / (4.5 * 10⁻⁹)

[H⁺] = 2.2 * 10⁻⁶ M

pH = - log [2.2 * 10⁻⁶ ]

pH = 5.69

The pH of a solution is 5.69.

To know more about pH

https://brainly.com/question/15289741

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