Consideting the definition of electrolyte, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 1.5 M.
<h3>Definition of electrolyte</h3>
An electrolyte is a substance that dissolves in water and gives rise to the formation of ions. Electrolytes can be weak or strong, depending on whether they are partially or totally ionized or dissociated in aqueous media.
A strong electrolyte is any substance that, when dissolved in water, exclusively causes the formation of ions with a practically irreversible dissolution reaction.
A weak electrolyte is a substance that, when dissolved in water, produces partial ions, with reversible reactions.
<h3>This case</h3>
The equation for dissociation is:
Ba(OH)₂ → Ba²⁺ + 2 OH⁻
You can observe that the mole ratio of Ba(OH)₂: Ba²⁺ is 1: 1 and the mole ratio of Ba(OH)₂: OH⁻ is 1: 2.
Since Ba(OH)₂ is a strong electrolyte, it dissociates completely. Then, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 2×0.750 M= 1.5 M
In summary, the concentration of Ba²⁺ is 0.750 M and the concentration of OH⁻ is 1.5 M.
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Answer:
Reaction mechanism has been given below
Explanation:
- Propanoyl chloride contains an electrophilic carbonyl center to give nucleophilic acyl substitution reaction by removing Cl group with a strong nucleophile like methylmagnesium bromide.
- Two equivalent of methyl magnesium bromide react with cabonyl center followed by protonation of negatively charged oxygen atom gives 2-methyl-2-butanol.
- In the first step, nucleophilic acyl substituion occurs. In the second step, nucleophilic addition occurs. In the third step, protonation occurs.
- Reaction mechanism has been shown below.
Answer:
4.74
Explanation:
It is possible to find pH of a buffer (The mixture of a weak acid: Acetic acid, with its conjugate base: Sodium acetate) using Henderson-Hasselbalch equation:
pH = pKa + log₁₀ [A⁻] / [HA]
<em>Where pKa is -log Ka of the weak acid, [A⁻] concentration of the conjugate base and [HA] concentration of the weak acid</em>
pKa of acetic acid is -log 1.8x10⁻⁵ = 4.74
The concentration of both, acetic acid and sodium acetate is 0.1M. Replacing in H-H equation:
pH = pKa + log₁₀ [A⁻] / [HA]
pH = 4.74 + log₁₀ [0.1] / [0.1]
pH = 4.74 + log₁₀ 1
<em>pH = 4.74</em>
Theoretical pH is 4.74
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Xenon-135 is produced from the the decay of iodine-135.
<h3>What is a nuclear reactor?</h3>
The term nuclear reactor refers to an instrument where nuclear reaction takes place. Now we know that nuclear reactions can be used for several purposes and one of those purposes is the generation of electricity.
Now, Xenon-135 is produced in a nuclear reactor by two primary methods. one is directly from fission, the other is from the decay of iodine-135.
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Missing parts
Xenon-135 is produced in a reactor by two primary methods. One is directly from fission; the other
is from the decay of...
A. cesium-135.
B. iodine-135.
C. xenon-136.
D. iodine-136.