Unit 5

Question 1

Lattice Energy

Answer 1

the energy given off when separated gaseous ions—positive and negative—come together to form one mole of a solid ionic compound.

Question 2

born haber process steps

Answer 2

• Sublime to bring solid to gas
• Ionize to get the gas to be an ion and lose an electron (positive charge)
• Electron affinity to add an electron and give a negative charge
• Dissociate: if there is a subscript on the molecule, change it to a coefficient in front of the element
• react
  Total energy = heat of formations

Question 3

Ka

Answer 3

acid dissociation constant:
which is a measure of how readily an acid dissociates (breaks apart) in a solution, essentially indicating the strength of an acid; a higher Ka value means a stronger acid because more of it dissociates in water.

Question 4

pKa

Answer 4

negative logarithm of the acid dissociation constant,” which is a measure of how readily a molecule donates a proton (hydrogen ion), essentially indicating the strength of an acid; a lower pKa value signifies a stronger acid, meaning it more easily releases its proton.