answers AMINES: REACTIONS WITH NITROUS ACID - Chemguide
Chemguide – answers. AMINES: REACTIONS WITH NITROUS ACID. 1. Acidify the amine with dilute hydrochloric acid and then add sodium or potassium nitrite
questions AMINES: REACTIONS WITH NITROUS ACID - Chemguide
Chemguide – questions. AMINES: REACTIONS WITH NITROUS ACID. 1. Nitrous acid is unstable and has to be produced in the same test tube as the reaction is
questions AMINES: PREPARATION - Chemguide
a) To make a primary amine like ethylamine you can react a halogenoalkane like bromoethane with ammonia. State the conditions for this reaction. b) The
questions ACYL CHLORIDES: REACTIONS WITH - Chemguide
Chemguide – questions. ACYL CHLORIDES: REACTIONS WITH AMMONIA AND PRIMARY. AMINES. 1. Draw structures for ethylamine and phenylamine and explain how these
answers AMINES: PREPARATION - Chemguide
In the second reaction another ammonia molecule removes a hydrogen ion from the nitrogen in the salt to leave the free amine and produce the ammonium ions
questions PHENYLAMINE: AS A PRIMARY AMINE - Chemguide
Phenylamine is a much weaker base than a primary amine like ethylamine or than ammonia. Explain why. 2. The flow diagram below shows some reactions of
answers AMINES: AS NUCLEOPHILES - Chemguide
In the second reaction an equilibrium is set up involving a reaction between another ethylamine molecule which removes a hydrogen ion from the
questions ACID ANHYDRIDES: REACTIONS WITH - Chemguide
Reactions of acid anhydrides with these compounds involve two stages. In the first there is a reaction between the anhydride and ammonia or the amine
questions HALOGENOALKANES: REACTIONS WITH - Chemguide
Halogenoalkanes react with ammonia to form amines which come in three kinds – primary Give the conditions for the reaction of bromoethane with ammonia.
questions AMINES: AS BASES - Chemguide
b) Explain why the compounds are acting as bases in these reactions with water. c) Describe what happens when ammonia gas and methylamine gas come into contact
C h em g u id e - q u e s tio n s
AMINES: AS BASES
1.a) What do you understand by
(i) a Bronsted-Lowry base; (ii) a Lewis base? b) Explain why methylamine, CH3NH2, acts as a base in both of these senses.2.This question is about comparing the reactions of ammonia and methylamine as bases.
a) Write equations to show what happens when both of these compounds dissolve in water. b) Explain why the compounds are acting as bases in these reactions with water. c) Describe what happens when ammonia gas and methylamine gas come into contact with hydrogen chloride gas. d) Write the formulae for the two compounds formed in these reactions, showing essential details of their structures. e) Describe what happens if you add a few drops of ammonia solution or methylamine solution to a solution of copper(II) sulphate containing [Cu(H2O)6]2+ ions. f) Write equations to show what happens in these reactions. g) Describe what happens if you add an excess of ammonia solution or methylamine solution to a solution of copper(II) sulphate containing [Cu(H2O)6]2+ ions. h) Write the formulae for the final copper-containing products of these reactions. i) In what sense are ammonia and methylamine acting as bases in these last reactions?3.a) Write the equation for the reaction which happens when dimethylamine, (CH3)2NH, reacts with
water. b) Write the formula of the product of the reaction between trimethylamine gas, (CH3)3N, and hydrogen chloride gas, showing the essential details of its structure. www.chemguide.co.ukquotesdbs_dbs17.pdfusesText_23[PDF] amine reactions practice problems
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