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Answer:
6x−18
Explanation:
Let's simplify step-by-step.
2x−6+4(x−3)
Distribute:
=2x+−6+(4)(x)+(4)(−3)
=2x+−6+4x+−12
Combine Like Terms:
=2x+−6+4x+−12
=(2x+4x)+(−6+−12)
=6x+−18
The hydronium ion concentration of the solution with given value of pOH is 7.94 × 10⁻⁸M.
Option D) is the correct answer.
<h3>What is pH of solution?</h3>
The pH of a solution is defined as the logarithm of the reciprocal of the hydrogen ion concentration [H+] of the given solution.
From the formular;
pH = -log[ H⁺ ]
pH + pOH = 14
Given that;
- Hydronium ion concentration OH⁻ = ?
First we find the pH
pH + pOH = 14
pH + 6.90 = 14
pH = 14 - 6.90
pH = 7.1
Now, from the above expression;
pH = -log[ H⁺ ]
Hence;
[ H⁺] = 10^(-pH)
[ H⁺] = 10^(-7.1)
[ H⁺] = 7.94 × 10⁻⁸M
Therefore, the hydronium ion concentration of the solution with given value of pOH is 7.94 × 10⁻⁸M.
Option D) is the correct answer.
Learn more about pH & pOH here: brainly.com/question/17144456
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