Write the net cell equation for this electrochemical cell. Phases are optional. Do not include the concentrations. Co(s)||Co2+(aq, 0.0155 M)‖‖Ag+(aq, 1.50 M)||Ag(s)

Calculate ∘cell , Δ∘rxn , Δrxn , and cell at 25.0 ∘C, using standard potentials as needed.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol