Potenital Differnce between Salt Bridge and rxn

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SUMMARY

The discussion focuses on calculating ion concentrations and potential difference across a membrane separating a 0.100 M sodium palmitate solution from a 0.200 M NaCl solution. The membrane is permeable to Na+ and Cl- ions but not to palmitate ions. The initial calculations suggested equal concentrations of 0.15 M Na+ and 0.10 M Cl- on both sides, but the user expressed uncertainty regarding the potential difference and the equations needed to describe equilibrium. The correct approach involves applying the Nernst equation to determine the potential difference accurately.

PREREQUISITES
  • Understanding of membrane permeability and ion diffusion
  • Familiarity with the Nernst equation for calculating potential difference
  • Basic knowledge of chemical equilibrium concepts
  • Proficiency in molarity calculations and ion concentration comparisons
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  • Study the Nernst equation and its application in electrochemistry
  • Research the principles of chemical equilibrium and ion transport across membranes
  • Learn about the effects of concentration gradients on potential difference
  • Explore examples of similar electrochemical systems for practical understanding
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Chemistry students, electrochemists, and anyone studying membrane transport phenomena will benefit from this discussion.

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Homework Statement

A 0.100 M solution of sodium palmitate (C15H31COONa) is separated from a 0.200
M NaCl solution by a membrane barrier that is permeable to Na+ and Cl-, but not to palmitate
ions.

I need to calculate the concentrations of the ions on both sides of the barrier once equilibrium is established. Along with the potential difference across the membrane due to the equilibrium established above.
b.


Homework Equations





The Attempt at a Solution

To find the concentration on each side, a comparison of Na, and Cl was made, and the each side was made equal to each other. This resulted in .15 Na, and .1 Cl for each side.
To find the potential difference, equations from our data section were used, however these numbers did not seem right.
Looking for any direction on how to get through the problem. Thanks!
 
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