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A lake has been acidified to a pH of 4.325. If the lake has a volume of 9.65x104 cubic meters, what mass, in kg, of CaO must be added to raise the pH to a value of 7.00? Hint: The reaction of CaO with water is: CaO + H₂O kg Cao Ca(OH)2

A lake has been acidified to a pH of 4.325. If the lake has a volume of 9.65x104 cubic meters, what mass, in kg, of CaO must be added to raise the pH to a value of 7.00? Hint: The reaction of CaO with water is: CaO + H₂O kg Cao Ca(OH)2

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Problem Statement: Lake pH Neutralization** A lake has been acidified to a pH of 4.325. If the lake has a volume of \(9.65 \times 10^4\) cubic meters, what mass, in kg, of CaO (calcium oxide) must be added to raise the pH to a value of 7.00? **Hint:** The reaction of CaO with water is: \[ \text{CaO} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 \] **Input Box:** - **kg CaO:** [This is where you input your answer] **Button:** - **Submit Answer** This problem requires calculating the amount of calcium oxide needed to neutralize the lake's acidity, using the provided chemical reaction as a basis for understanding the transformation.
Transcribed Image Text:**Problem Statement: Lake pH Neutralization** A lake has been acidified to a pH of 4.325. If the lake has a volume of \(9.65 \times 10^4\) cubic meters, what mass, in kg, of CaO (calcium oxide) must be added to raise the pH to a value of 7.00? **Hint:** The reaction of CaO with water is: \[ \text{CaO} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 \] **Input Box:** - **kg CaO:** [This is where you input your answer] **Button:** - **Submit Answer** This problem requires calculating the amount of calcium oxide needed to neutralize the lake's acidity, using the provided chemical reaction as a basis for understanding the transformation.
Expert Solution
Step 1

Volume of the lake = 9.365×104 cubic meters

pH of the lake = 4.325

The chemical reaction given is CaO + H2O → Ca(OH)2

 

 

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