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  1. Problems
  2. /Organic Compounds with Functional Groups
  3. /Amines

Amines

Chemistry
+ Upload a Problem
More in Organic Compounds with Functional GroupsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomolecules
30 problems
Exam:
Type:
1.
A laboratory shelf holds eight amines: tert-butylamine, N-methylaniline, triethylamine… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
2.
A saturated open-chain amine has the formula C₅H₁₃N… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
3.
Many amines have the formula C₈H₁₁N and contain one benzene ring… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
4.
Nitrobenzene, C₆H₅NO₂, is reduced by tin and hydrochloric acid, and then made alkaline, to give… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
5.
Butanamide, C₃H₇CONH₂, is warmed with bromine and aqueous sodium hydroxide… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
6.
A chemist makes butan-1-amine, C₄H₉NH₂, by the Gabriel synthesis… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
7.
The reduction of nitrobenzene with tin and hydrochloric acid follows C₆H₅NO₂ + 3 Sn + 7 HCl →… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
8.
Pentane (72 g/mol) boils at 36 °C. Butan-1-amine (73 g/mol) boils at 78 °C… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
9.
At 20 °C aniline dissolves in water to the extent of about 3.6 g in 100 mL… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
10.
An analyst finds that a saturated, open-chain primary amine contains 23.7 % nitrogen by mass… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
11.
In water at 298 K the pKb of methylamine is 3.38 and that of ammonia is 4.75… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
12.
A solution of methylamine in water has a concentration of 0.100 mol/L at 298 K… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
13.
Two solutions are made in water at 298 K, each with a concentration of 0.0500 mol/L… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
14.
A student treats 0.450 g of ethylamine, C₂H₅NH₂ (45 g/mol), with sodium nitrite and dilute… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
15.
Aniline, 4.65 g, is warmed with an excess of acetic anhydride, (CH₃CO)₂O… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
16.
A chemist warms 0.0500 mol of aniline with an excess of chloroform and alcoholic potassium… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
17.
A chemist makes a mixture that holds 0.0100 mol of each of the eight amines of the formula C₄H₁₁N… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
18.
Aniline, 4.65 g, is shaken with an excess of bromine water at room temperature… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
19.
Aniline, 18.6 g, is converted to p-nitroaniline in three steps: acetylation, nitration and… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
20.
Aniline is nitrated with a mixture of concentrated nitric and sulphuric acids… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
21.
A chemist diazotises 9.30 g of aniline (93 g/mol) in an ice bath with sodium nitrite (69 g/mol) and… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
22.
A solution holds 0.0400 mol of benzenediazonium chloride… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
23.
Iodobenzene is made from nitrobenzene in three steps… New
High School (11–12) · AminesStemPy LabStemPy Lab
Hard
24.
A solution holds 0.0200 mol of benzenediazonium chloride… New
High School (11–12) · AminesStemPy LabStemPy Lab
Easy
25.
Phenol has pKa = 10.0 and the anilinium ion has pKa = 4.6… New
High School (11–12) · AminesStemPy LabStemPy Lab
Medium
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