Find the emf of a galvanic cell
Not what you're looking for?
What is the emf of a galvanic cell consisting of a Cd2+/Cd half-cell and a Pt/H+/H2 half-cell if [Cd2+] = 0.28 M, [H+] = 0.21 M, and PH2 = 0.62 atm?
What is V?
Do I use the equation:
E = E - (.0257V / n) lnQ
What do I put in for E initial?
Purchase this Solution
Solution Summary
Finding the emf of a Cd galvanic cell
Solution Preview
We are looking at these reactions:
Cd2+ + 2e- ---> Cd Eo = - 0.40 V
2H+ + 2e- ---> H2 Eo = 0.00 V
To get a positive voltage in a galvanic cell, reverse the first equation and add to the second:
Cd + 2H+ ---> Cd2+ + H2 ...
Purchase this Solution
Free BrainMass Quizzes
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.