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) Zn(OH) ₄^2-(aq) ; K_f = 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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Definitions:

Patellar Tendon

The tendon that connects the patella (kneecap) with the tibia (shinbone), playing a key role in knee extension.

Quadriceps Femoris

A group of four muscles located at the front of the thigh, which are crucial for walking, running, and jumping by extending the knee.

Hamstrings

A group of three muscles at the back of the thigh that are involved in bending the knee.

Dorsal Root Ganglion

A cluster of sensory neuron cell bodies located within the dorsal root of a spinal nerve.