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1 August, 01:40

The following substances dissolve when added to water. Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution.

1. ion-ion forces

2. dipole dipole forces

3. ion dipole forces

4. london dispersion forces

A. HF

B. CH3OH

C. CaCl2

D. FeBr3

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Answers (1)
  1. 1 August, 02:09
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    Answer: HF-dipole - dipole interaction

    CH3OH - dipole-dipole interaction

    CaCl2 - ion-ion interaction

    Explanation:

    Both CH3OH and HF possess permanent dipoles which interact with water leading to the dissolution of the above named substances. Remember that water also possesses a permanent dipole. Which can interact with the dipoles on other polar molecules. CaCl2 is purely ionic and interacts with water via ion-dipole mechanism.
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