Final answer:
The value of δh°f for the formation of 1 mole of NaCl(s) is typically -411 kJ/mol. This value represents the standard enthalpy change under standard conditions (1 atm and 25°C).
Step-by-step explanation:
The student is asking about the value of the standard enthalpy (δh°f) for the formation of 1 mole of NaCl(s). The correct enthalpy value is not provided within the given information. However, the given information provides the standard enthalpy of formation for FeCl3(s) as an unrelated example. To answer the student's question, we need to look up the standard enthalpy of formation for NaCl(s) in a chemistry data source, which is typically -411 kJ/mol. The assumptions made for the thermodynamic information include that the values provided are taken under standard conditions (1 atm pressure and 25°C temperature) and for the formation of 1 mole of the compound from its elements in their standard states.