Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

chem lecture ch19

Galvanic cells they use redox reactions to generate electricity. The energy comes from a spontaneous redox reaction, and the electron transfer is forced to take place through a wire.
cathode is the electrode at which reduction takes place
anode is the electrode at which oxidation takes place
Cations move towards the _____? cathode
Anions move towards the _____? anode
salt bridge a tube filled with a solution containing ions not involved in the cell reaction.
potential magnitude of this ability is called the potential in ( V ). The volt is the amount of energy in joules, that can be delivered per coulomb ( C ). So, a charge flowing under a potential of one volt can deliver one joule of energy per coulomb. 1 V = 1 J / C
cell potential ( Ecell ) The maximum potential a galvanic cell can generate. It depends on the composition of the electrodes, the concentrations of the ions in the half-cells and the temperature.
Reduction potential measure of the tendency of reduction half-reactions to occur. The magnitude of this tendency is expressed by the half-reaction’s reduction potential.
E°cell formula E°cell = E°Ag+ - E°Cu2+
the calculated standard cell potential for the spontaneous reaction is always ________? posotive
cell potential formula G = maximum work = n F Ecell n=number of moles of electrons transferred, F=Faraday constant The Faraday constant F is equal to the coulombs of charge equivalent to one mole of electrons (9.65 104 Coulombs per mole of electrons).
If G is negative, which corresponds to a positive value of Ecell, the reaction will occur ____________? spontaneously
pH-electrode a galvanic cell with a potential, that is proportional to the proton concentration in the solutions into which it is immersed.
In an electrolytic cell: Cathode is _______? Anode is ________? cathode is negative anode is positive
Created by: jsherm82