Concept explainers
Interpretation:
The volume of lead nitrate required to react with given potassium chromate solution and the mass of lead chromate formed are to be determined.
Concept Introduction:
Titration is a method to determine the concentration of a substance in solution by allowing it to react with a solution of known concentration of other substance, just beyond the point where the reaction between both the substances comes to an end. In precipitation reactions, on reaction of the reactants, an insoluble end product is formed which precipitates out from the solution.
Answer to Problem 8PP
Solution:
The volume of lead nitrate required to react with given potassium chromate solution is
Explanation of Solution
Given Information:
The molarity of lead nitrate solution is
The given
Thus, one mole of lead nitrate reacts with one mole of potassium chromate to form a mole of lead chromate.
The normality
The product of volume of lead nitrate solution
The volume of lead nitrate solution is determined by using equation (2). Substitute
Thus, the volume of lead nitrate required is
Convert volume units from milliliters to litres as follows:
Convert
The molarity of the solution
Substitute
From the equation, it can be summarized that one mole of lead nitrate produces one mole of lead chromate.
For
Thus, the mass of lead chromate formed is
The volume of lead nitrate required to react with given potassium chromate solution is
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Chapter 11 Solutions
EBK INTRODUCTION TO CHEMISTRY
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