Acids are chemicals which can dissociate in water to yield hydrogen ions. There are two types of acids which are strong acids and weak acids. Strong acids dissociate completely and weak acids only dissociate partially. Answer and Explanation:1 pKa is the negative logarithm of the acid dissociation...
where HA is the acid and A- is the conjugate base. Ka = [A-][H3O+] / [HA][H2O] This is used to calculate pKa, the logarithmic constant: PKA = – log10 Ka The larger the pKa value, the smaller the dissociation of the acid and the weaker the acid. Strong acids have a pKa of...
Buffer is defined as the weak base and its conjugate acid. These two are mixed in an appreciable concentration. If too much strong acid or a strong base is added then the buffer can be destroyed. Answer and Explanation: Learn more about this topic: ...
Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions. It is used as the base employed in generating enolates for the preparation of lactone precursors, ...
Hydrochloric acid (HCl) is a strong Brønsted–Lowry acid, whereas sodium hydroxide (NaOH) is a strong Brønsted–Lowry base. Mathematically, pKa is defined as the negative logarithm of the acid dissociation constant, Ka. Before going further, let’s have a quick refresher on Ka. ...
What is LDA reagent? Lithium diisopropylamide(commonly abbreviated LDA) is a chemical compound with the molecular formula [(CH3)2CH]2NLi. It is used as a strong base and has been widely utilized due to its good solubility in non-polar organic solvents and non-nucleophilic nature. ...
Consider a the titration of 2.5 M carbonic acid (H2CO3) with 2.0 M NaOH. What is the pH at the first equivalence point of the titration? pKa1=6.37,pKa2=10.32.pH of an ampholyte:At the first equivalence point, you form an amp...
The amine-assisted activity of the mutant enzyme depended on the pKa values and molecular volumes of the alkylamines used. A strong kinetic isotope effect was observed when alpha-deuterated D-alanine was used as a substrate in the methylamine-assisted reaction, but little effect was observed ...
Some authors justify the strong testicular biopersistence of particles by the presence of the blood–testis barrier which would protect them from cells normally responsible for their elimination, a similar phenomenon to what is observed in the brain. However, to support this mechanistic explanation, ...
Which of the following choices is expressed by pKa? The equilibrium constant of an acid The equilibrium constant of a base The magnitude of the strength of an acid The magnitude of the strength of a base Next Worksheet 1. Which of the following would be classified as ...