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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Answer:
office work --> back injury
jobs in the retail sector --> injuries due to violent crimes
restaurant jobs --> burns
cleaning jobs in medical facilities --> blood-borne diseases
Explanation:
-note that these are just assumptions based on a few different things.
1) back injury, long hours sitting in one place in one position.
2) retail sector employees often have to face the act of stealing, and many criminals put up a fight when they are stealing something of value.
3)A lot of restaurant jobs involve time around appliances that give off heat like stoves, hot water, ovens, etc.
4) Blood-borne diseases are transmitted through blood, and many medical employees have to clean up that bloody mess, therefore they might catch something.
Answer:
a bachelors degree in computer science hope this helps:)
Answer:
Answer is B. Military service
Explanation:
Answer is B. Military service