Question

Calculate the energy needed to convert three moles of sodium atoms in the gaseous state to sodium ions. The ionization energy of sodium is 495 kJ/mol:

• A. 1485 kJ
• B. 495 kJ
• C. 148.5 kJ
• D. None

Hint:

The energy required to ionize multiple moles of atoms is simply the ionization energy multiplied by the number of moles.

Answer 1

The Correct Option is A

The total energy required is the ionization energy multiplied by the number of moles: \[ \text{Energy} = 495 \, \text{kJ/mol} \times 3 = 1485 \, \text{kJ} \]
Final Answer: \[ \boxed{1485 \, \text{kJ}} \]