Question

A sample of vinegar has a hydronium concentration of 1.6 × 10-3 M. What is the pH of the vinegar?

Answer 1

Não estou conseguido coloca o meu em Portugues como eu faço ?

Answer 2

PH is defined as the negative log of Hydronium Ion concentration.

So, in order to find the pH of vinegar, we find the negative log of its hydronium ion concentration.

$pH=-log[ H_{3}O^{+}] \\ \\ pH=-log(1.6 * 10^{-3}) \\ \\ pH=2.8$

So, the pH of given vinegar solution will be 2.8.

Therefore, the answer to this question is option B