In a titration experiment, 31. 4 ml of 1. 120 m hcooh is neutralized by 16. 3 ml of ba(oh)2. what is the concentration of the ba
1 answer:
In a titration experiment, 31. 4 ml of 1. 120 M HCOOH is neutralized by 16. 3 ml of . So, the concentration of the
solution is 23.16 M
Calculation,
The formula for the dilution of a solution is given as:
=
Where M is molarity and V is the volume of the solution in liters ( L ).
Given data,
= 120 M
=31. 4 ml
= ?
= 16. 3 ml
120 M ×31. 4 ml = × 16. 3 ml
= 120 M ×31. 4 ml / 16. 3 ml =23.16 M
In a titration experiment, the concentration of the solution is 23.16 M
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Answer:
0.5 moles of LiOH will absorb 5.6 L of
Explanation:
According to law of conservation of mass, the sum of mass on the reactant side must be equal to the sum of mass on product side.
The balanced chemical equation is:
2 moles of LiOH absorb 1 mole of i.e. 22.4 Liters at STP
0.5 moles of LiOH absorb
=
0.5 moles of LiOH will absorb 5.6 L of
If the concentration of acetyl chloride is increased ten times the rate of reaction is increased ten times.
The conversion of acetyl chloride to methyl acetate is a substitution reaction. Recall that a substitution reaction is one in which a moiety in a molecule is replaced by another.
In this reaction, the CH3O- ion replaces the chloride ion. In the first step, the CH3O- ion attacks the substrate in a slow step. This creates a tetrahedral intermediate. Loss of the chloride ion yields the methyl acetate product.
The rate determining step is the formation of the tetrahedral intermediate. Since the reaction is first order in the acetyl chloride, if its concentration is increased ten times the rate of reaction is increased ten times.
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