Can You Solve These Unanswered Chemistry Homework Questions?

Thread starter Moonbear
Start date Mar 5, 2006

AI Thread Summary

Numerous unanswered chemistry questions are posted under the "other sciences" category, indicating a need for assistance in this subject area. Students are seeking help, and those with strong chemistry knowledge are encouraged to contribute. The urgency for support is highlighted by the ongoing wait for responses, particularly as some members of the community are currently too busy to assist. Engaging with these questions could significantly benefit students in need of homework help.

Mar 5, 2006

Moonbear

Staff Emeritus

Science Advisor

Gold Member

There are a number of homework help questions under the topic of "other sciences" that are chemistry questions and are unanswered. If anyone here has strong chemistry knowledge and can help with those questions, I'm sure it would be really appreciated by those students currently waiting for help.

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Mar 5, 2006

GCT

Science Advisor

Homework Helper

I've just been very busy lately

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...

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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.

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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!!

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