Answer: Im not sure but i think its B
Explanation: Its hard to explain so im
not gonna do it
Taking into account the definition of strong acid, pH and pOH, it is obtained that the correct option is option A) [H₃O⁺]= 5.5×10⁻² M, [OH⁻]= 1.82×10⁻¹³ M, pH= 1.26
It is called strong acid, that acid that dissociates completely in solution at constant temperature and pressure. Under these conditions, the concentration of a strong acid is equal to the concentration of hydrogen ions (Hydronium or H₃O⁺). In other words, a strong acid is an acid that completely dissociates into hydrogen ions and anions in solution.
Hydrobromic acid HBr is a strong acid, so a concentration of 0.055 M of the acid generates a H₃O⁺ concentration of the same value. This is:
[HBr]= [H₃O⁺]= 0.055 M= 5.5×10⁻² M
On the other hand, pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance. Mathematically it is calculated as the negative logarithm in base 10 of the activity of hydrogen ions:
pH= -log [H₃O⁺]
Being [H₃O⁺]= 5.5×10⁻² M, the pH in this case is:
pH= -log (5.5×10⁻² M)
Solving:
pH= 1.26
Similarly, pOH is defined as the negative base 10 logarithm of the activity of the OH⁻ ions:
pOH= - log [OH⁻]
The following relationship can be established between pH and pOH:
pH + pOH= 14
Then, being pH = 1.26, the pOH is calculated by:
1.26 + pOH= 14
pOH= 14 - 1.26
pOH= 12.74
Replacing in the definition of pOH:
12.74= - log [OH⁻]
and solving you get:
[OH⁻]= 1.82×10⁻¹³ M
Finally, the correct option is option A) [H₃O⁺]= 5.5×10⁻² M, [OH⁻]= 1.82×10⁻¹³ M, pH= 1.26
Learn more about pH and pOH with this example: https://brainly.com/question/13423425?referrer=searchResults
