- Why does my sea salt have a best by date? [duplicate]
@Farooq: As the link in this answer shows, culinary “sea salt” certainly can contain anti-caking agents And as the answer explains, the (potential very slight) deterioration that justifies the “best before” date is not caused by the anti-caking agent, but inhibitied by it Best before dates are never meant to be interpreted as “product expires now — discard it”, but just as
- Why is OH- so electrically conductive? - Chemistry Stack Exchange
In high school (or mine, at least), we're taught that H+ ions are very conductive, due to their small molar mass, and by Newton's 2nd Law, higher acceleration, making them more mobile in solution
- Why is a C4 ring impossible? - Chemistry Stack Exchange
Ring strain and principles of aromaticity render such a molecule unstable Each double bond contributes 2 π electrons, and with four double bonds in one cycle in common, there is a total of 8 Compounds with (4n + 2) π electrons (where n is an integer number) are considered as Hueckel aromatic with an additional energetic stabilization e g , in benzene compared to a hypothetical cyclo-1,3,6
- redox - Half equations for H2O2 for its reducing and oxidising nature . . .
Is there a complete list of all the half equations for $\\ce{H2O2}$ - both oxidation and reduction, in acidic and alkaline conditions? I've looked on the internet but can't seem to find a list with
- User Jamil Ahmed - Chemistry Stack Exchange
Q A for scientists, academics, teachers, and students in the field of chemistry
- thermodynamics - How do you calculate enthalpy for a reaction at non . . .
Do you know how to calculate the change in enthalpy and entropy for a substance as you change the conditions (T, P, ) in a thermodynamically reversible fashion? Now take the reactants at "standard" conditions, transform them to reactant (s) at the non-standard conditions, react them, and take the product (s) back to the standard condition Compare with the reaction occurring at standard
- How can one explain niobium’s weird electronic configuration?
As cited in an answer to this question, the ground state electronic configuration of niobium is: $\\ce{Nb: [Kr] 5s^1 4d^4}$ Why is that so? What factors stabilize this configuration, compared to the
- organic chemistry - Why is naphthalenes protonated pKa −20 . . .
A low $\\mathrm{p}K_\\mathrm{a}$ would indicate a strong acid However, naphthalene is an extremely weak acid, and I read online that it can be classified as a weak base Can someone explain this? Does
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