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A solution is 0.010 M in each of Pb(NO3)2, Mn(NO3)2, and Zn(NO3)2. Solid NaOH is added...

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Chemistry

A solution is 0.010 M in each of Pb(NO3)2, Mn(NO3)2, andZn(NO3)2. Solid NaOH is added until the pH of the solution is 8.50.Which of the following is true?

Pb(OH)2, Ksp= 1.4 x10^-20

Mn(OH)2, Ksp= 2.0 x 10^-13

Zn(OH)2, Ksp= 2.1 x10^-16

A) No precipitate will form.

B) Only Pb(OH)2 will precipitate.

C) Only Mn(OH)2 wil precipitate.

D) Only Zn(OH)2 and Pb(OH)2 will preipitate.

E) All three hydroxide will preipitate.

Answer & Explanation Solved by verified expert
4.4 Ratings (981 Votes)
ANSWER D only ZnOH2 and PbOH2 willprecipitateWe have relation pH pOH 14pOH 14 pH 14 85 55We have relation pOH log OH OH 10 pOH OH 10 55 316 10 06 MWe knowthat precipitation takes place when    See Answer
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