Differbetween
- Which is more basic benzamide and acetamide?
- Why is the melting point of benzamide more than that of acetamide?
- What is benzamide used for?
- Is benzamide acidic or basic?
- Why benzamide is less basic than aniline?
- Why is Thiele's tube heated at the side arm?
- Do impurities lower melting point?
- Why is liquid paraffin filled in Thiele's tube?
- Does benzamide dissolve in water?
- How is benzamide converted to toluene?
- Is acetamide soluble in water?
Which is more basic benzamide and acetamide?
Benzene group involves the bond pair of carbonyl group with benzene it extend the resonance. Due this the lone pairs of N are available for the protonation. Hence benzamide is more basic than acetamide.
Why is the melting point of benzamide more than that of acetamide?
Benzamide and acetamide contain same functional group, but the molecular mass of benzamide is more than that of acetamide. As a result benzamide has stronger intermolecular forces and hence has higher melting point.
What is benzamide used for?
Benzamide derivatives possess different kinds of pharmacological activities like antimicrobial, analgesic, anti- inflammatory, anticancer, cardiovascular, and other biological activities. Due to these biologically significances, scientists have interesting to develop various new benzamide derivatives.
Is benzamide acidic or basic?
Benzamide, also known as benzoate amide or PHC(=o)NH2, belongs to the class of organic compounds known as benzamides. These are organic compounds containing a carboxamido substituent attached to a benzene ring. Benzamide is an extremely weak basic (essentially neutral) compound (based on its pKa).
Why benzamide is less basic than aniline?
This interaction decreases the availability of the lone pair on the carbonyl oxygen for donation to acids. Thus, benzamide is less basic.
Why is Thiele's tube heated at the side arm?
The shape of the Thiele tube allows for formation of convection currents in the oil when it is heated. ... The side arm of the tube is designed to generate these convection currents and thus transfer the heat from the flame evenly and rapidly throughout the heating oil.
Do impurities lower melting point?
The presence of even a small amount of impurity will lower a compound's melting point by a few degrees and broaden the melting point temperature range. Because the impurity causes defects in the crystalline lattice, it is easier to overcome the intermolecular interactions between the molecules.
Why is liquid paraffin filled in Thiele's tube?
Paraffin oil is used for determination of boiling point and melting point for the following reasons: It has a very high boiling point and so it can be used to maintain high temperatures in the boiling and melting point apparatus without loss of the substance.
Does benzamide dissolve in water?
Benzamide is a white solid with the chemical formula of C6H5C(O)NH2. It is the simplest amide derivative of benzoic acid. It is slightly soluble in water, and soluble in many organic solvents.
How is benzamide converted to toluene?
The sample is treated with benzene sulphonyl chloride, C6H5SO2Cl (Hinsberg's reagent) followed by treatment with aqueous KOH (5%) solution. Based upon the observations, the following conclusions may be drawn: (i) If a clear solution is obtained , then it is a primary amine.
Is acetamide soluble in water?
Acetamide
| Names | |
|---|---|
| Solubility in water | 2000 g L−1 |
| Solubility | ethanol 500 g L−1 pyridine 166.67 g L−1 soluble in chloroform, glycerol, benzene |
| log P | −1.26 |
| Vapor pressure | 1.3 Pa |
