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Problem- 1) What is the calcium ion concentration in a solution prepared by mixing 343 mL of 0.403 M calcium nitrate with 423 mL of 0.253 M sodium fluoride? The Ksp of calcium fluoride is 3.2 × 10-11
2) Suppose a solution contains 0.28 M Pb2 and 0.48 M Al3. Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2.
The Ksp values for Al(OH)3 is 4.6*10^-33 and Pb(OH)2 is 1.43*10^-20.
Minimum < PH < Maximum
Define how we can calculate the pH range that would allow Al(OH)3 to precipitate
That of Al is higher than that of Mg for the reason that Mg wants to lose the second electron, so it is easier to take the second electron away.
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