Question

NaF is more soluble than LiF—Why ?​

Answer 1

Answer:

because it is greater than naf

Answer 2

NaF is more soluble than LiF because of the larger size of NaF.

• LiF is formed by a lithium cation and a fluoride anion, and NaF is formed by a sodium cation and a fluoride anion.

• The size of the lithium cation is very small, due to which the nuclear force of attraction between the lithium ion and the fluoride ion is very strong.

• This strong interionic force of attraction makes it very difficult for the bond to break and form hydrogen bonding with the water molecules.

• On the other hand, the size of sodium ion is bigger and the interionic force of attraction between sodium and fluoride is  comparatively weaker.

• This makes it easier for the bond to break and form hydrogen bonding with the water molecules.

• Therefore, NaF is more soluble in water than LiF.