Discussion Forum



1)

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) 1485kJ

B) 495kJ

C) 148.5kJ

D) None of these

Answer:

Option A

Explanation:

Energy needed to convert 1 mole of sodium (g) to sodium ions = 495 kJ

.'. Energy needed to convert 3 moles of Na(g) to Na+ ions

= 495 x 3 =  1485 kJ