Answer to Question #272915 in Chemistry for Pussy

Question

What is the pH of a 0.055 M of HBr solution?

Answer 1

Solution:

HBr is a strong acid which dissociates as follows:

HBr + H₂O → H₃O⁺ + Br^-

[H₃O⁺] = C(HBr) = 0.055 M (according to the equation above)

We can convert between [H₃O⁺] and pH using the following equation:

pH = - log[H₃O⁺]

pH = - log(0.055) = 1.26

pH = 1.26

Answer: The pH of a 0.055 M of HBr solution is 1.26