Answer is: concentration of hydroxide ions [OH⁻] is 1.047·10⁻¹⁰ M.
pH = 4.02.
pH = -log[H⁺<span>].
</span>[H⁺] = 10∧(-pH).
[H⁺] = 10∧(-4.02).
[H⁺] = 9.54·10⁻⁵ M; equilibrium concentration of hydrogen cations.
[H⁺] · [OH⁻] = 1·10⁻¹⁴ M².
[OH⁻] = 1·10⁻¹⁴ M² ÷ 9.54·10⁻⁵ M.
[OH⁻] = 1.047·10⁻¹⁰ M; equilibriom concentration of hydroxide anions.
The chemical reaction would most likely be written as:
X + Y = XY
We cannot simply use the usual method of converting grams to moles since we do not have any idea on what are the identities of X and Y. The only method we could use is to use the law of conservation of mass where mass inflow in a process should be equal to the mass out in the process. The total inflow of mass would be the mass of X and Y and the outflow would be the product XY.
g X + g Y = g XY
12.2 g + g Y = 78.9 g XY
g Y = 66.7 g
35/42
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The decomposition of wastewater can lead to the following:
II. Eutrophication and algal blooms.
III. The development of dead zones.
<h3>What is a
wastewater?</h3>
A wastewater can be defined as a body of water that has been contaminated due to human use in homes, offices, schools, businesses etc.
Ideally, wastewater should be disposed in accordance with the local regulations and standards because they typically are unhygienic for human consumption or use. Thus, floor drain are used in the kitchen, bathroom and toilet to remove wastewater, so as to mitigate stagnation and to improve hygiene.
Generally, the decomposition of wastewater can lead to the following:
- Eutrophication and algal blooms.
- The development of dead zones.
Read more on wastewater here: brainly.com/question/17791594
The difference between Argon-38 and Argon - 45 is the number of neurons in their nuclei.
<h3>
What is Isotope?</h3>
Isotopes are two or more types of atoms of the same element that have the same atomic number but differs in mass numbers due to different numbers of neutrons in their nuclei.
Argon atom with a mass number of 38 (Ar-38) - number of neutrons = 20
Argon atom with a mass number of 45 (Ar-45) - number of neutrons = 27
Thus, the difference between Argon-38 and Argon - 45 is the number of neurons in their nuclei.
Learn more about isotopes here: brainly.com/question/364529
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