Ions and solutions 2

equation to calculate work from change in voltage

Work =QdeltaV

how to calculate current

charge per second

whats the point of the salt bridge

to balance charges

what happens at the anode and cathode

annode reduction (rox-anne)

cathode oxidation

How to calculate Ecell

anode minus cathode now reason this out using final-initaial

equation for resistance and symbol

ohm R=V/I

why do you use high resistance voltmeters

to minimise the effect of the internal resistance of the cell as resistors in series the total potential is devided proportional to the reasistance

what is the reference for Ecell values

the hydrogen electrode

what is the electrochemical work delta G refering to

the delta G value which would arise if the reaction was done in one pot

how do you calculate electrochemical work

delta G = -nFEcell

why would you want to calculate electrochemical work

calculate rate constant of the reaction using delta G = -RTln(k)

what is the nernst equation

Ecell = Ecell ^o -RT/nF (Ln(Q)) Q is k at equilibrium

whats normally used instead of hydrogen half cell to measure standard electrode potential

AgCl