Concept explainers
Solid lead nitrate is added to a solution that is 0.020 M in OH- and SO42-. Addition of the lead nitrate does not change the volume of the solution.
(a) Which compound, PbSO4 or Pb(OH)2
(b) What is the pH of the solution when PbSO4 first starts to precipitate?
(a)
Interpretation: Whether
Concept Introduction :
Expression of
Where,
Expression of
Where,
Answer to Problem 34QAP
The compound which precipitates first is
Explanation of Solution
Given Information:
The value of solubility product for both the salts is
Calculation:
Expression of
Where,
So,
Expression of
Where,
So,
Hence,
(b)
Interpretation:The pH of the solution when
Concept Introduction :
Formula to calculate
Formula to calculate
Answer to Problem 34QAP
When
Explanation of Solution
When
From
So,
Calculation of
So, value of
Calculation of
Hence,
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Chapter 15 Solutions
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