alleryStart learning →How much energy is needed to pull one mole of solid sodium chloride apart into gaseous ions?
A436 kJ
B769 kJ
C243 kJ
D185 kJ
Answer & Solution
Correct answer: B. 769 kJ
1. Separating the lattice means overcoming every attraction between the ions at once.
2. For one mole of solid sodium chloride that costs 769 kilojoules.
3. The other values belong to covalent bonds, which are far weaker than a whole ionic lattice.
_Source: OpenStax Chemistry (CC BY 4.0), Chs 7 and 17, section 7.1 Ionic Bonding_
Keep practising Chemical Bonding and Molecular Geometry
Browse all Chemical Bonding and Molecular Geometry questions for NY Regents Chemistry, or explore more Chemistry topics.
Related questions
Swipe each molecule by polarityDrop each formula by bond typeSwap to line up one familyCarbon dioxide contains two polar carbon to oxygen bonds, yet the whole molecule is nonpolAmmonia has three bonds and one lone pair around its nitrogen atom. What is the shape of tBreaking all four carbon to hydrogen bonds in one mole of methane takes 1660 kJ. What is tHow does a carbon to carbon triple bond compare with a carbon to carbon single bond?Nitric oxide has 11 valence electrons in total. What does that odd count tell you before y