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Asked Apr 23, 2019
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Question 11

Calculate Qsp for calcium fluoride (Ksp = 3.9 ×10–11) when 180.0 mL of a 5.70×10-3 M  solution of Ca(NO3)2 is added to 270.0 mL of a 5.85×10-3 M solution of KF.

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Expert Answer

Step 1

Precipitates are said to be formed in a chemical reaction which involves aqueous solutions of cations and anions and they react to form insoluble ionic compound. The formation of a precipitate in a given reaction is determined by the help of certain solubility rules.

The ionic product of a given salt which is also denoted by Q or Qsp is nothing but the product of concentrations of the ions present in the solution raised to the same powers as shown in the solubility product expression.

On the other hand the Ksp value of a salt will indicate that how far the dissolution proceeds at the saturation point.

Step 2

In the given problem we need to show the reaction between calcium nitrate and potassium fluoride which is as follows:

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Step 3

Since all the nitrates are soluble therefore it will  remain in aqueous solution.

Th...

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Physical Chemistry

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