Please can anyone help me with the following:
Filter paper is a poor material on which to powder a solid before introducing it into a melting tube. Why?
Thank you!
There are a number of reason I wouldn't use filter paper to break up a solid.
1. It isn't strong enough to withstand vigorous grinding.
2. The powder will be mixed with fibers of paper which will then become part of the melting process.
3. An extension of #2 is that the cellulose COULD affect the melting point due to mixed melting.
4. A small amount of sample (a few milligrams) will be lost on the paper during grinding and/or will not be transferred to a melting tube.
the melting point of pure benzoic acid and pure naphthol are 122.5 and 123 degrees celcius respectively. you are given a pure sample that is known to be either pure benzoic acid or 2- naphthol. describe a procedure you will use to determine the identity of the sample.
I don't know the answer
Melt the two known with the unknown sample and if the unknown sample melt at the same temperature of one of those known compound which shows that it has a sharp melting point with one of those known compound then that the same compound
Filter paper is not suitable for powdering a solid before introducing it into a melting tube due to its inherent properties. The primary reason is that filter paper is porous and absorbent, designed to trap and separate particles rather than allow them to pass through. When attempting to powder a solid on filter paper, the particles get caught in the small pores of the paper, making it difficult to transfer the powder into the melting tube.
Additionally, filter paper is fragile and can tear easily, especially when dealing with abrasive or solid materials. Powdering a solid on filter paper may cause the paper to tear, resulting in loss of the sample and potential contamination.
To overcome these challenges, it is recommended to use a more suitable material for powders, such as a mortar and pestle. Using a mortar and pestle allows for better control and manipulation of the sample, ensuring efficient powdering before transferring it to the melting tube.