A Pb ( s ) | Pb 2 + ( aq ) | | Au 3 + ( aq ) | Au ( s ) galvanic cell has a standard cell potential of 1.628 V. Calculate the Gibbs free energy change at 25 °C when 2.45 g of gold is deposited. Assume that the concentrations in the cell remain at the standard state values of 1 M through the entire deposition process.

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?