What is the best example of a cyclic event?
1 answer:
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Answer:
b
Explanation:
The reaction that is not a displacement reaction from all the options is
In a displacement reaction, a part of one of the reactants is replaced by another reactant. In single displacement reactions, one of the reactants completely displaces and replaces part of another reactant. In double displacement reaction, cations and anions in the reactants switch partners to form products.
<em>Options a, c, d, and e involves the displacement of a part of one of the reactants by another reactant while option b does not.</em>
Correct option = b.
Answer : The pH of 0.289 M solution of lithium acetate at is 9.1
Explanation :
First we have to calculate the value of .
As we know that,
where,
= dissociation constant of an acid =
= dissociation constant of a base = ?
= dissociation constant of water =
Now put all the given values in the above expression, we get the dissociation constant of a base.
Now we have to calculate the concentration of hydroxide ion.
Formula used :
where,
C is the concentration of solution.
Now put all the given values in this formula, we get:
Now we have to calculate the pOH.
Now we have to calculate the pH.
Therefore, the pH of 0.289 M solution of lithium acetate at is 9.1