why are chalk and talc insoluble?
another question: why does table salt, sugar, baking soda, and different substances dissolve in different amounts for the same set of condtions (same volume and temp.)? thank you so much i really need help
2006-11-15 08:37:38 · 2 answers · asked by anonymous 2 in Science & Mathematics ➔ Chemistry
It takes energy not only to break up the solid solute into its individual particles, but also to force the solvent molecules apart. Now, if the solute can offer the solvent some very attractive forces (like sodium ions and chloride ions do from table salt) the whole process will work. The energy required to break up chalk is just too great.
2006-11-15 08:41:27 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
maybe it's because the links between their molecules are more or less stronger
water and other solvents have the capability to break those links and adhere to those molecules
if the links are stronger then the solvent then you have an insoluble substance
the different amounts of solvent needed is related to the specific characteristics of each substance due to the differences in molecular structure... it's been too long since school to remember more
2006-11-15 08:45:00 · answer #2 · answered by ╠╬╣ 3 · 0⤊ 0⤋