How necessary is soap for removing salt from your hands? Why?
Whether soap should be used for removing salt from hands
Answer to Problem 16TE
The soap is not necessary for removing salt from hands. The water can remove the salt as strong ion-dipole interactions are present between them.
Explanation of Solution
The soap contains polar as well as non-polar components. So, it can be used for removing the non-polar dirt materials which cannot be removed by just water.
The salt molecule is polar. The water molecule is polar. It exhibits dipole. Like dissolves like. So, water can remove the salt molecules from the hands.
The water and salt molecules exhibit ion-dipole interactions between them. The ion-dipole interactions are strong.
So, only water is enough for removing the salt, and soap is not required.
Conclusion:
Therefore, the soap is not necessary for removing salt from hands. The water can remove the salt as strong ion-dipole interactions are present between them.
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