What are the principles behind it? The types of intermolecular forces dictate these results. These examples illustrate what is meant by the comment "like dissolves like". The usual and simplistic divide is to categorize materials as polar or non-polar. Hexane has a six carbon chain and is nonpolar. This statement indicates that a solute will dissolve best in a solvent that has a similar chemical structure to itself. Specifically, polar solvents tend to dissolve polar solutes, and non-polar solvents tend to dissolve non-polar solutes, while non-polar and polar substances are Immiscible (do not mix). Why do each of them form homogeneous solutions? This means that polar molecules will dissolve polar molecules, and non-polar molecules will dissolve with non-polar molecules. Question 8 See the information in Question 6 of the Makeup Remover pdf file opened in the first step of this assignment. Also, how do non-polar molecules dissolve non-polar molecules? when passing a non-polar aqueous solution through a filter of the highly non-polar silica c-18 hydrocarbon, why will it favor the association with the silica? Can Someone Explain Why the "Like Dissolves Like" Chemistry Solubility Rule Works Like I Am 5. Chemists say that ‘like dissolves like,’ meaning that substances with similar chemical characteristics will dissolve in each other. Polar compounds dissolve in polar compounds and nonpolar dissolve in nonpolar. basically, what is the chemical principle behind the theory of "Like dissolves Like" this is in regards to a Liquid Chromatography experiment with grape koolaid and the aforementioned silica c-18 hydrocarbon. > Why is this so? Why does this rule exist and how does it work? like dissolves like. I was wondering why is it that like solvents dissolve like solutes? Thanks! 2 comments. For something to dissolve it must not only lose the bonds it has between its own particles, but it must also break the bonds the solvent has between solvent particles. The rule states that polar solutes will dissolve in polar solvents and non-polar solutes will dissolve in non-polar solvents. If the Gibbs free energy change of a process is negative then the process is likely to happen. How about the other two products? Once you know what makes two (or more) substances “likes”, the answer is self-evident. Like Dissolves Like When it comes to explaining or determining solubility of solvents, we use a helpful phrase that goes like this: Like dissolves Like. The quick answer is that “Like dissolves like”. Polar solvents dissolve polar solutes....of course there is a catch... Polar solvents TEND to dissolve polar solutes....and non-polar solvents TEND to dissolve non-polar solutes...but this is a VERY general rule of thumb. For example, why doesn't a polar molecule dissolve a non-polar molecule. Shouldn't it be that different molecules attract to eachother. A popular aphorism used for predicting solubility is "like dissolves like" also expressed in the Latin language as "Similia similibus solventur". Question 7 Based on the "like dissolves like" principle, please explain why the product you identified as not homogeneous has two different layers. This means that substances are more likely to dissolve in other substances with similar chemical properties. And here when we say "polar" we mean "charge-separated". This is a bit like the old slogan “Safety is no accident”. It is most often used when discussing polar and nonpolar solvents. As with most systems, this one will try to minimize its total energy. When a solute dissolves in a solvent the individual particles of the solute separate from their neighbours and move between the spaces of the solvent particles. 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