Acid-Base Theories: Bronsted-Lowry and Lewis

University:
University of Wolverhampton
Course:
4PY019 | Pharmacy
Academic year:

2024
Views:

220

Pages:

2
Author:

Sara

what are the two theories on acids and bases bronstead-lowry and lewis theory. all bronstead-lowry acids are lewis acids but not all lewis acids are bronstead-lowry acids. Define a Bronstead-Lowry acid proton donor what is bonstead-lowry base proton acceptor. what is an acid-base reaction when proton transferred from acid to a base how can a molecule act as an acid and base when it contains both hydrogen atoms (acid) and lone electrons pairs (base) morphine what is an example of a molecule which can act as an acid and base what is acid strength tendency of acid to donate a proton more readily a compound donates a proton/dissociates the strong an acid is what is a weak acid poor at donating a proton or partially dissociates what is acidity measured by equilibrium constant what is base strength ease with which a base accepts a proton. more readily a compound accepts a proton the stronger the base is. what makes a base weak poor at accepting proton or partially dissociates describe a strong acid in an aqueous solution dissociates completely what are the properties of acid in water conduct electricity strong the acid stronger the conductivity react with metals to make H2 gas theyre indicators-cause reversible colour change in water conduct electricity reacts with acids in neutralisation reac1/2 what are the properties of bases tions to form water and salt. cause reversible colour change slippery to touch what is a lewis acid electron par acceptor- electrophile what is a lewis base electron pair donor-nucleophile what is a buffer substance that resists a change in H+ conc even if acids or bases are added what is tris buffer used in molecular biology cell culture. sensitive to temp and pH will vary greatly at various temperatures. what is an acidic buffer solution ph less than 7 commonly made from weak acid and one of its salts what is an alkaline buffer solution ph greater than 7. made from weak acids and one of its salt. 2/2