Solutions, Molarity and Intermolecular Forces Video Lessons

Concept: Solutions and Molarity.

# Problem: Rank the following solute‐solvent interactions in order of INCREASING strength of attraction.I. K+ in H2OII. CH3CH2NH2 in H2OIII. CO2 in CCl4 a) I &lt; II &lt; IIIb) III &lt; II &lt; Ic) II &lt; III &lt; Id) I &lt; III &lt; IIe) III &lt; I &lt; II

###### FREE Expert Solution
98% (131 ratings)
###### FREE Expert Solution

We’re being asked to rank the given pair of compounds in order of increasing strength of solute-solvent interaction.

We’re going to use the theory “likes” dissolving “likes” which states that the solvent can only completely dissolve the solute if they share similar polarity

Therefore, a pure solvent with similar polarity can successfully dissolve a solute to create a solution.

Intermolecular Forces (IMF) are the attractive forces between 2 molecules.

Ion-dipole

strongest IMF
▪ deals with the attraction between an ion and a polar compound.

Hydrogen Bonding

98% (131 ratings)
###### Problem Details

Rank the following solute‐solvent interactions in order of INCREASING strength of attraction.

I. K+ in H2O

II. CH3CH2NH2 in H2O

III. COin CCl4

a) I < II < III

b) III < II < I

c) II < III < I

d) I < III < II

e) III < I < II

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Based on our data, we think this problem is relevant for Professor Velarde's class at UB.