Question

What type of forces will exist while dissolving 1g of salt in 100 mL of water?
B
Dispersion force
ton dispersion
londipole force
Dipole dipole for​

Answer 1

Answer:

I think dispersion force should be the answer.

Answer 2

Answer:

Ion-dipole force will use to dissolve 1g of salt in 100 mL of water.

Explanation:

• As we already know, water is a polar solvent which means it has a permanent dipole moment due to its the bent shape of the molecule. It has negative charge of the oxygen on side of the molecule and the positive charge of the 2 hydrogen atoms on the other side. Because of greater electronegativity of Oxygen, electron density is shifted towards oxygen which make the bond polar.

• on the other hand, salt which is Sodium chloride (NaCl) is ionic compound splits into Na⁺ and Cl⁻ ions in water.

So when 1g of salt gets dissolved in water, the positive end of water molecule feels attraction towards the Cl⁻ and the other slightly negative end of water molecule gets attracted by Na⁺ ion . In this way Na⁺ and Cl⁻ ions gets surrounded by water and Na⁺ and Cl⁻ gets dissolved. This is called Ion-dipole interaction. The force here is used to dissolve salt in water is Ion-dipole force.

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