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navik [9.2K]
3 years ago
10

What is the hydronium ion concentration in an aqueous hydrobromic acid solution with a pH of 4.530?

Chemistry
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

2.951 × 10⁻⁵ M

Explanation:

Let's consider the acid reaction of hydrobromic acid according to Brönsted-Lowry acid-base theory.

HBr(aq) + H₂O(l) ⇒ Br⁻(aq) + H₃O⁺(aq)

Given the pH = 4.530, we can calculate the concentration of the hydronium ion using the following expression.

pH = -log [H₃O⁺]

[H₃O⁺] = antilog -pH = antilog -4.530 = 2.951 × 10⁻⁵ M

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