Separation of acids and bases. Prelab questions, 1. (a) Write the definition of

Question

Separation of acids and bases. Prelab questions, 1. (a) Write the definition of a Bronsted-Lowry acid (b) Write the definition of a Bronsted-Lowry base. 2. What does it mean when two liquids are immiscible? 3. Search online for the structure of coniine that can be extracted from poison hemlock and mandelic acid. Then draw the bond line structure of both compounds below. Show all non-bonding clectrons and then complete the acid-base reaction between these two by drawing the conjugate base and conjugate acid. coniine mandelic acid 4. Complete these acid base reactions by drawing the conjugate acid and the conjugate base for each reaction + NaOH OH + HCI-

Explanation / Answer

1) a) According to Bronsted - Lowry concept, An acid is a substance which can furnish H+ ion (i.e.- acids are proton donor)in aqueous medium. In this context all Arrhenius acids are also Bronsted - Lowry acid. For example, HCl, H2SO4, HNO3 are Bronsted - Lowry acids

Bases are on the otherhand are proton acceptor. in this respect anions such as Cl-, NO3-, HSO4-, SO42- etc can accept protons and hence are bases. More over, neutral species such as H2O and NH3 can also accept protons and hence are bases.

Moreover, H2O is amphoteric(dual nature of acid and base) in nature as it can accept as well as donate proton.

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