Use tabulated electrode potentials to calculate δg∘ for the following reaction: 2na(s)+2h2o(l)→h2(g)+2oh−(aq)+2na+( aq) express the free energy in joules to three significant figures.

The for the given reaction is

Explanation:

For the given chemical reaction:

Half reactions for the given cell follows:

Oxidation half reaction:    (  × 2)

Reduction half reaction:

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the of the reaction, we use the equation:

Putting values in above equation, we get:

Where,

n = number of electrons transferred = 2

F = Faradays constant = 96500 C

= standard cell potential = 2.71 V

Putting values in above equation, we get:

Hence, the for the given reaction is