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Calculate Q to determine whether or not a precipitate will form in a solution containing 0.043 M Ca(NO,), and 0.0055 M NaF. Step 1: identify the possible precipitate. In this example, it is Caf,. Look up its K value (table 16.2). Step 2: Write a balanced equation for dissolution of CaF,: Step 3: Write the equation for K, for CaFa: Step 4: Write an expression for Q: Step 5: Plug in the concentrations above to calculate Q: Step 6: Compare the value of Q to the value of K What will happen?

Calculate Q to determine whether or not a precipitate will form in a solution containing 0.043 M Ca(NO,), and 0.0055 M NaF. Step 1: identify the possible precipitate. In this example, it is Caf,. Look up its K value (table 16.2). Step 2: Write a balanced equation for dissolution of CaF,: Step 3: Write the equation for K, for CaFa: Step 4: Write an expression for Q: Step 5: Plug in the concentrations above to calculate Q: Step 6: Compare the value of Q to the value of K What will happen?

Fundamentals Of Analytical Chemistry
Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter11: Solving Equilibrium Problems For Complex Systems
Section: Chapter Questions
Problem 11.16QAP
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Calculate Q to determine whether or not a precipitate will form in a solution containing 0.043 M Ca(NO,), and 0.0055 M NaF. Step 1: identify the possible precipitate. In this example, it is Caf,. Look up its K value (table 16.2). Step 2: Write a balanced equation for dissolution of CaF,: Step 3: Write the equation for K, for CaFa: Step 4: Write an expression for Q: Step 5: Plug in the concentrations above to calculate Q: Step 6: Compare the value of Q to the value of K What will happen?
Transcribed Image Text:Calculate Q to determine whether or not a precipitate will form in a solution containing 0.043 M Ca(NO,), and 0.0055 M NaF. Step 1: identify the possible precipitate. In this example, it is Caf,. Look up its K value (table 16.2). Step 2: Write a balanced equation for dissolution of CaF,: Step 3: Write the equation for K, for CaFa: Step 4: Write an expression for Q: Step 5: Plug in the concentrations above to calculate Q: Step 6: Compare the value of Q to the value of K What will happen?
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