Concept explainers
Interpretation:
The concentration of ions remaining in the solution after completion of the given reaction is to be calculated, assume volumes are additive.
Concept introduction:
The number of moles of a given compound that take part in the given reaction depends upon the concentration of the limiting reagent.
The reagent that is present in lesser amount in the given reaction is known as limiting reagent.
The conversion of volume from
The number of moles of compound in the given solution is calculated as:
Answer to Problem 127AP
Solution:
The concentration of
Explanation of Solution
Given information: The reaction of
The mass of
The volume of
The mass of
The volume of
The balanced chemical equation for the given reaction is,
The conversion of volume from
Hence, the conversion of the volume of
Similarly, the conversion of the volume of
The total volume of the final solution is calculated by adding the volume of
The number of moles of a compound in the given reaction is calculated by the formula,
Substitute the values of mass and molar mass of
Substitute the values of mass and molar mass of
The number of moles of hydroxide ions that take part in the given reaction is calculated by the formula,
Substitute the value of number of moles of
Hence, the number of moles of hydroxide ions are present in excess, and
The number of moles of hydroxide ions remaining in the solution after completion of reaction is,
The molarity of the ions present in the given solution is calculated by the formula,
Here,
Substitute the values of
Substitute the values of
Substitute the values of
The concentration of
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