Question

What are the four important steps needed to obtain accurate meting points on a Mel-Temp?

Answer 1

Answer: (b)

(d)

(e)

(g)

Explanation:

The four (4) important steps that are needed to obtain an accurate melting point is given as;

• First is Grinding: Grind the sample into fine powder.

• Second is Filling: Fill the capillary tube with about 3mm of powder

• Third is Adjusting the temperature: Set the voltage to rise quickly to 20° below the expected temperature, then re-adjust so the temperature rises at 2° per minute.

• Lastly is Observation and recordings: Record the temperature the temperature at which liquid first appears and the temperature at which the last crystal disappears.

I hope this helps, cheers.