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2 Μαΐ 2015 · Pka's apply to synthesis and mechanisms. Here's my take on how... Say you want to make a compound and you need a grignard or organolithium to make some carbon-carbon bond. Both of those are incredibly strong bases that will react with acidic protons on your molecule before they'd act in the way you intend them to.
26 Φεβ 2020 · Does anyone know of any online free or cheap software that can roughly calculate the PKA of an organic compound? I'm working with a lot of synthetic cannabinoids that have a protonatable nitrogen and need roughly their PKA values.
2 Σεπ 2021 · I've been trying to model some pKa values with simple models in GAUSSIAN to demonstrate (1) the usefulness of molecular models, (2) some basics on thermodynamics and standard states etc., and (3) molecular visualization, to geochemistry students.
16 Δεκ 2021 · For example, acetic acid CH 3 COOH has a Ka of 1.8×10-5. Lots of other organic acids are even weaker than acetic acid, and it is this weak acidity that makes it difficult to realize that some organic compounds are actually acids. However, this weak acidity is very important in Organic Chemistry.
The pKa measures how tightly a proton is held by a Bronsted acid. A pKa may be a small, negative number, such as -3 or -5. It may be a larger, positive number, such as 30 or 50.
HI, with a pK a of about -9, is almost as strong as sulfuric acid. More importantly to the study of biological organic chemistry, this trend tells us that thiols are more acidic than alcohols.
In this article, we will delve into the intricacies of pKa tables, discussing how to use them effectively to solve acid-base-related questions. These tables are widely utilized in organic chemistry, helping chemists estimate the strength of acids and bases.
