Find $\Delta$ H°_rxn for the Reaction
2Ag₂S(s)+ 2H₂O(l) $\rarr$ 4Ag(s)+ 2H₂S(g)+ O₂(g) $\Delta$

question 80

Short Answer

Find $\Delta$ H°_rxn for the reaction
2Ag₂S(s)+ 2H₂O(l) $\rarr$ 4Ag(s)+ 2H₂S(g)+ O₂(g).
[ $\Delta$ H°_f (Ag₂S(s))= -32.6 kJ/mol; $\Delta$ H°_f (H₂S(g))= -20.5 kJ/mol; $\Delta$ H°_f (H₂O(l))= -285.5 kJ/mol]

Recognize the distinction and application of FIFO, LIFO, weighted-average, and specific invoice inventory valuation methods.

Understand the journal entry process for inventory transactions, including purchases, sales, and returns.

Analyze the advantages and disadvantages of different inventory valuation methods.

Interpret the role of inventory ledgers and journals in tracking inventory transactions and balances.

---

Definitions:

Leaching

The separation or dissolution of soluble constituents from a rock, sediment, or soil by percolation of water.

RePrecipitate

The process in which dissolved substances crystallize or become solid again from a solution.

Angle of Repose

The steepest angle at which loose material, like sand or gravel, can be piled without slumping, determined by the frictional contact between the particles.

Orientation of Fractures

describes the spatial alignment or direction of cracks or breaks in geological formations.