organic solvent layer is violet
Yes Chloroform has a strong smell. Unfortunately, if you can smell the chemical, the level is too high to be safe.
The final pH of the mixture will depend on how much of the strong acid you add. The initial amount of acid will neutralize the alkaline solution, and if there is enough of the strong acid, the final pH will then become acidic, i.e. pH < 7.
Neutralization is more likely to be H+ from acid reaction with OH- of alkali.
When adding a strong acid to an acidic solution pH decreases. Adding a strong base to an acidic solution the pH increases.
a strong electrolyte
their color
Strong iodine solution that is not diluted can cause irritation and damage to mucous tissues.
Lugol's solution
Unlike the iodine solution in water, the tincture of iodine keeps the iodine molecules in the solution in a more stable way, hence the latter has a lower probability to sublime and get out of the system.
That would be a 5% solution of Lugol's iodine.
The role of KI in the preparation of strong iodine solution is to enhance the solubility of iodine crystals in water. Iodine is generally not soluble in water. The KI is added to help the iodine to be dissolved. -College Chemistry professor
yes
Chloroform, CHCl3 is slightly acidic in nature so with a strong base like NaOH it losses proton (H+) and forms a carbanion. CHCl3+ NaOH -----> (CCl3)1-Na1+ + H2O
1. the Iodine solution should be free of any signs of bacterial or fungal contamination 2. the color should be that of strong tea(discard if too light)
Yes Chloroform has a strong smell. Unfortunately, if you can smell the chemical, the level is too high to be safe.
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It will shrivel up and possibly die.