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Suppose Sodium Hydroxide Is Added to a 0

Question 38

Multiple Choice

Suppose sodium hydroxide is added to a 0.0042 M solution of zinc nitrate such that the pH of the solution is 13.04.What is the equilibrium concentration of Zn2+?
Zn2+(aq) + 4OH-(aq) Suppose sodium hydroxide is added to a 0.0042 M solution of zinc nitrate such that the pH of the solution is 13.04.What is the equilibrium concentration of Zn<sup>2+</sup>? Zn<sup>2+</sup>(aq) + 4OH<sup>-</sup>(aq) Zn(OH) <sub>4</sub><sup>2-</sup>(aq) ; K<sub>f</sub> = 2.8 × 10<sup>15</sup> A) 1.6 × 10<sup>-17</sup> M B) 4.2 × 10<sup>-3</sup> M C) 2.7 × 10<sup>-2</sup> M D) 1.0 × 10<sup>-14</sup> M E) 1.4 × 10<sup>-17</sup> MZn(OH) 42-(aq) ; Kf = 2.8 × 1015


A) 1.6 × 10-17 M
B) 4.2 × 10-3 M
C) 2.7 × 10-2 M
D) 1.0 × 10-14 M
E) 1.4 × 10-17 M

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