ROSS99

molecule size and also the molecule’s charge. Compounds of ions with small charges tend to be more soluble and compounds of ions with small charges also tend to be more soluble. MAKE SENSE?

thanks..if anyone has some more suggestions that be great i also have one more question: Other than temperature, identify two other factors that can increase the solubility of a solid.

to idea what that is

The relationship between the solubility of potassium nitrate and the temperature of its solution is that as the temperature increases the solubility of potassium nitrate also increases. The solubility of potassium nitrate increases as the temperature increases because it is a solid and for most solids an increase in temperature results in greater solubility. This pattern occurs because increased temperature means increased molecular motion, which breaks apart the firm bonds holding the molecules in a solid together. When a solid comes in contact with a liquid solvent some of the molecules in a solid will break free and mix into the liquid. As more solute is added into the solvent, some of the molecules that broke free will return as they bump into the solid. When the solid has reached its maximum solubility the ratio between the number of molecules breaking free from the solid and attaching themselves to the solid is exactly the same. By increasing the temperature the molecules begin to move faster making it more likely for molecules on the surface of the solid to break free and less likely for molecules in the solution to become attached to the solid. Therefore, the addition of heat facilitates the dissolving reaction by providing energy to break the bonds in a solid and allowing the molecules to become detached. The moment crystals begin to form, the saturation point of the solution is illustrated. When less solvent is present, the concentration of the solute quickly exceeds the solubility causing the excess solute to crystallize out. ??

Why does the solubility of a solid increase as the temperature of the solution increases? what happens at the molecular level? What property of the solution is illustrated the moment crystals start forming? i have an answer for each but i am not positive...any help would be greatly appreciated. thank you

nevermind it has been FOUND :cool:

thanks i understand but i am back with yet anouther question What type of cells make up the cortex of a root? What is the cortex of a root used for? thanks

ive tried but i havent found an answer that makes sense (question concerining the tissues)

i am studying vascular plants and i am having difficulty finding the answers to certain questions...can someone please help me out with the the following: what are the special enviornmental conditions a taproot is adapted to? where is the parenchyma, sclerenchyma, and epidermal tissue located? thats enough for now...will probably be more to come please help.