What Is the Approximate Concentration of Free Cu²⁺(aq)remaining at Equilibrium

question 44

Multiple Choice

What is the approximate concentration of free Cu²⁺(aq) remaining at equilibrium in a solution prepared by mixing 5.0 mL of 0.10 M CuCl₂(aq) with 5.0 mL of 2.0 M aqueous ethylenediamine?
[The net formation constant for the bis(ethylenediaminecopper(II) ion is 1 × 10²⁰.]

• A)9 × 10^-22 M
• B)7 × 10^-22 M
• C)2 × 10^-22 M
• D)1 × 10^-21 M
• E)6 × 10^-22 M

---

Definitions:

Cognitive Neuroscience

Study of links between neural processes and cognitive abilities.

Assessment of Brain Stimulus

Evaluating the response or activity in the brain when it is exposed to a particular stimulus or set of stimuli.

Mental Stimulus Evaluation

The psychological process of assessing and interpreting stimuli from the environment in a manner that influences mental states and behaviors.

Neurological Assessment

A clinical evaluation of the nervous system to identify signs of neurological disorders or injuries.