Is the solubility of a salt affected by how much salt you add to a solution?

Thread starter Nikitin
Start date Nov 10, 2012
Tags

Salt Solubility

AI Thread Summary

A saturated solution of salt at a constant temperature and pressure will maintain a constant concentration of dissolved salt, even if additional solid salt is added. This is because a saturated solution is defined as one that has reached its maximum capacity for dissolving the solute, meaning no more salt can dissolve under those conditions. The discussion emphasizes that, assuming no other reactions occur, the amount of dissolved salt remains unchanged despite the presence of excess solid salt.

Nov 10, 2012

Nikitin

Hey. Will a saturated solution of a salt at a constant temperature and pressure have a constant amount of dissolved salt even as you add more salt? Let us pretend that acid-base or metal-complex reactions don't happen.

Chemistry news on Phys.org

Nov 10, 2012

Borek

Mentor

Saturated means - no more can dissolve, so yes, concentration of dissolved salt doesn't change when you add more solid.

Thread 'Enthalpy - published values'

Do the published values of Enthalpy include the work done against a constant pressure, e.g., the atmosphere? (I am not a chemist). I am reviewing enthalpy and entropy as part of the statistical mechanics applied to transistors. I assume, from my reading, that the work done would mostly apply to reactions involving gasses.

View full post »

Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!

View full post »

Thread 'Solubility of MgSO47H2O in water'

It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...

View full post »