Question

C2 T12HW Question 11 Homework. Unanswered Fill in the Blanks Now try predicting solubility with a salt that is not 1:1 in cation:anion. If 5.0 ML of 10uM magnesium nitrate is mixed with 5.0 ul of 10uM sodium phosphate, will magnesium phosphate precipitate? Be sure to write the equilibrium and equilibrium equation carefully. Ksp for magnesium phosphate is: le-25. (Recall that u is the symbol for micro). Q =

Answer 1

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First we find concentration of Mg and Poy ion in the Solution $10UM=1x10 5UL+5UL 5xסוaL Totas volume z 1olll -6 TouL= 10X1nl =1o x10 L Img -6 5 x10 M 9- Mg2+) = 5 x 1o L x 10 X10 M Tox106L 5 x 10 M | Poya- = 5x 10L×10 x10 M 3. lox10-6L we know 3- + 2 POy a Qsp= [mpe+]* [Poy3]= [sxi075x10°]* 3.125 x 10 -27 -25 Given Ksp ksp> Qsp wiel not foom so precipitate So Scanned with CS CamScanner