Without conducting an experiment, one can determine if a species in a solution is acidic or basic by using a litmus paper.
<h3>Litmus test</h3>
Acidic species would turn a blue litmus paper to red but have no effects on red litmus paper.
Basic species would turn a red litmus paper to blues but have no effects on blue litmus paper.
Thus, in order to determine if a species in a solution is acidic or basic without conducting any experiment, dipping a litmus paper into the solution would give an indication.
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Answer:
1) Dissolve the crude substance in a minimum amount of hot solvent.
2) Filter the hot solution to remove the solid impurities (if present)
3) Allow the solution to cool slowly so crystals form.
4) Filter the crystals.
5) Dry the crystals
6) Weigh the crystals into a tared flask.
Explanation:
Recrystallization is a method used in chemistry to obtain crystals having a high degree of purity for the purpose of analytical or synthetic laboratory work.
Answer:
Explanation:
Given that,
The frequency of infrared wave, 
We need to find the wavelength of infrared wave. The relation between the frequency and the wavelength is given by :
where
c is the speed of light
So, the wavelength of the infrared wave is 
.
