pH = 1.35
Explanation:
Hydrobromic acid (HBr) is a strong acid and it will dissociate completely in water:
HBr (l) + H₂O (l) → Br⁻ (aq) + H₃O⁺ (aq)
Where:
(l) - liquid
(aq) - aqueous
Because hydrobromic acid is a strong acid:
[HBr] = [H₃O⁺] = 0.0450 M
We know that pH is defined as:
pH = -lg [H₃O⁺]
pH = -lg [0.0450]
pH = 1.35
Learn more about:
pH
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