Examples of 'have a pka' in a sentence
Meaning of "have a pka"
have a pka: This phrase refers to the concept of 'pKa' in chemistry, representing the acidity constant of a molecule or compound, indicating its ability to donate a proton in a chemical reaction
How to use "have a pka" in a sentence
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have a pka
Preferred buffers have a pKa in the physiological range.
In an alternative embodiment, they are strong cation exchangers that have a pKa below 3.
An appropriate buffer may have a pKa value that is at or near the desired pH.
According to a particular embodiment of the invention said base may have a pKa above 14.
The acid used preferably should have a pKa sufficient to protonate the aniline nitrogen.
The metal salts are derived from protic acids that have a pKa less than 0.
Mild bases have a pKa above 7.
Suitable protic acids are inorganic and organic protic acids that have a pKa less than 0.
Some preferred acids have a pKa of about 1 or less.
For the reaction to be successful, the nucleophile must have a pKa less than 15.
Because the phosphate groups have a pKa near 0, they are negatively charged at pH 7.
Another class of preferred anionic surfactants consist of surfactants which have a pKa of greater than 4.0.
Newer compounds have a pKa of around 5-6 so the problem is avoided.
Antimicrobial fatty acids have a pKa of about 5.
Preferred carboxylic acids have a pKa of less than 5 in water.
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As a derivative of methanol, triphenylmethanol is expected to have a pKa in the range of 16-19.
These phenolic compounds may have a pKa of, for example, from about 9 to about 12.
It is preferred that the acid have a pKa less than 4.
Preferred weak organic acids have a pKa 3-6 and include, for example, acetic acid.
Typically, the proton acceptor will generally have a pKa of greater than about 8.
A strong acid, for example, can have a pKa value of less than about -2.
Preferably, the sulfate and sulfonate groups have a pKa of less than about 3.0.
The organic sulfonic acid catalysts have a pKa in the range from about -12 to about 1.
More typically, the Formula I compound would have a pKa in a range from two to seven.
Suitable acids generally have a pKa of 5 or less.
Suitable proton donors generally have a pKA of less than about 0.
Sulfonic acid resins should preferably have a pKa value lower than about 1.
Certain preferred polar groups have a pKa of between 4 and 5.
Suitable weak bases will typically have a PKa from about 4 to about 12.
In general, the proton acceptor will have a pKa greater than about 9.
The anionic functional groups have a pKa of less than about 3.0.
Suitable acids are those, which have a pka of less than about 10.
In general, the nucleophile may have a pKa greater than about 13.
By the term " weak acid " we mean acids which have a pKa of less than about 6.5.
In further embodiments, the organic acid may have a pKa of less than about 0 at 25 °C.
In still other embodiments, the organic acid may have a pKa of less than about 1 at 25 °C.
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Examples of using Pka
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So this is what the pKa is associated with
The pKa is a measurement of the strength of an acid
And then your pH is equal to your pKa
Examples of using Have
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These documents have been in my family for centuries
Have this done by the customer service only
He could not have chosen a worse time
