Name the compound: (CH3)3N_______
What is the name of
CH3(CH2)6COOH? ______________
The reaction of a carboxylic acid with an alcohol in the
presence of strong acid produces________________
What are the products of the reaction of pentanoic acid with the
strong base potassium hydroxide? _____________
Consider the bromination of 1-pentanol by HBr to form
1-bromopentane.
CH3(CH2)3CH2OH + HBr ---> CH3(CH2)3CH2Br + H2O
1 pentanol mol. weight 88 g/mol
hydrobromic acid 80.9 g/mol
1-bromopentane 151 g/mol
nitric acid 63 g/mol
a) If you had 44 g of 1-pentanol, 34 g of HBr and 1.7 g of
nitric acid, what would be the limiting reagent in this
reaction?
b) What is the theoretical yield of 1-bromopentane in (a) ?
c) If you obtained 16.0 g of 1-bromopentane,...
Ethylene glycol (EG), CH2(OH)CH2(OH), is
a common automobile antifreeze. It is water soluble and fairly
nonvolatile
(b.p. 197°C).
Calculate the boiling point and freezing point of a solution
containing
475.5 g of ethylene glycol in 3503 g water. The molar mass of
ethylene glycol is 62.07 g/mol.
Freezing point:
Boiling point:
°C
°C
Be sure to answer all parts.
How many liters of the antifreeze ethylene glycol
[CH2(OH)CH2(OH)] would you add to a car
radiator containing 6.50 L of water if the coldest winter
temperature in your area is −21.0°C? Calculate the boiling point of
this water-ethylene glycol mixture. (The density of ethylene glycol
is 1.11 g/mL.)
What is the volume of antifreeze?
L
What is the boiling point of the solution?
°C
Automotive antifreeze consists of ethylene glycol,
CH2(OH)CH2(OH),a non volatile non electrolyte. Calculate the
boiling point and freezing point of a 25.0 mass % solution of
ethylene glycol in water.
(for water, Kb= 0.51 degrees Celsius c/m, Kf =1.86 degrees c/m;
molar mass of C2H6O2 = 62.1 g/mol)