Question

The following table gives the solubility at different temperatures Answer the question based on this.

Temperature in Kelvin

Substance dissolved	283	293	313	333	353
KNO3	21	32	62	106	167
NaCl	36	36	36	36	37
KCl	35	35	40	46	54
NH4Cl	24	37	41	55	66

Which salt has the lowest solubility at 283 K?

Answer 1

Solubility: The maximum amount of solute that can dissolve in a known quantity of solvent at a certain temperature is its solubility.

According to the given table At 283K temperature, 21 is the lowest number which corresponds to Potassium nitrate(${\mathrm{KNO}}_3$).

• The lowest solubility is shown by ${\mathrm{KNO}}_3$ at 283K i.e 21.
• Potassium nitrate shows the lowest solubility at 283 k according to the given table.