What is the theoretical yield of 1-bromobutane in your synthesis What is the actual yield?
The balanced equation shows that one mol of 1- bromobutane is obtained for every mol of 1-butanol used. Since we are starting with 2.5 mmoles of 1- butanol, then the theoretical yield of 1-bromobutane is also 2.5 mmoles, or ….16.4: Examples of Portions of Lab Reports.
| Substance | 1-Bromobutane |
|---|---|
| M.W. | 137.03 |
| m.p. (ºC) | -112 |
| b.p. (ºC) | 100-104 |
| Density (g/mL) | 1.276 |
What is the functional group of 1-bromobutane?
1-Bromobutane is the organobromine compound with the formula CH3(CH2)3Br. It is a colorless liquid, although impure samples appear yellowish. It is insoluble in water, but soluble in organic solvents. It is a primarily used as a source of the butyl group in organic synthesis.
How can you obtain 1-bromobutane from but 1 Ene?
It can be done by the free radical addition of HBr on but-1-ene. Normal addition of HBr on but-1-ene will result in the product of 2-bromobutane. If the reaction takes place in presence of peroxide, the antimarkownikoffs product , 1-bromobutane will be formed.
What is the percent yield of 1-bromobutane?
Mole-to-mole comparison: A mole-to-mole comparison will show that 1 mole of 1-butanol forms 1 mole of 1-bromobutane. The percent yield of 1-bromobutane is 65.1 %.
What can 1-Bromobutane be used for?
1-Bromobutane is used as an intermediate in organic synthesis and as a solvent for cleaning and degreasing. It acts as an alkylating agent as well as to prepare organometallic compounds such as n-butyllithium. It is also involved in the synthesis of procaine and tetracaine.
Is 1-bromobutane primary secondary or tertiary?
The primary bromides are 1-bromobutane, CH3CH2CH2CH2Br , and 1-bromo-2-methylpropane, (CH3)2CHCH2Br . The tertiary bromide is 2-bromo-2-methylpropane, (CH3)3CBr .
How to make 1 bromobutane from 1 butanol?
Terms in this set (24) What are the three steps in which you can form 1 butanol into 1-bromo butane? 1) constant-boiling hydrobromic acid (47% HBr) (2) an aqueous solu- tion of sodium bromide and excess sulfuric acid, which is an equilibrium mixture containing hydrobromic acid; or
How many moles of sodium bromide do you need to make 1-butanol?
If you have 1 mole of butanol, how many moles of sodium bromide do you required? One mole of 1-butanol theoretically requires 1 mole each of sodium bromide and sulfuric acid, but this procedure calls for using a slight excess of bromide and twice the theoretical amount of acid.
Which is the best drying agent for 1-bromobutane?
Calcium chloride is the drying agent of choice in this reaction because it forms complexes with any residual alcohol, as well as with water. After drying, the 1-bromobutane is purified by distillation. 1. Dissolve 7.5g NaBr with 7.5mL water in a 50mL round-bottomed bottle.
What happens at the end of the reaction of 1-butanol?
Another side reaction that occurs is oxidation of the 1-butanol by either H2SO4 or Br2 (formed by oxidation of Br- by H2SO4). At the end of the reaction, the mixture consists of two phases.