Well, this is where chemistry gets a little tricky, becomes a 'case by case' study, and starts having more exceptions to a rule than anything else. Shouldn't it be that different molecules attract to eachother. Why does like dissolves like? Why do each of them form homogeneous solutions? Thanks! Polar compounds dissolve in polar compounds and nonpolar dissolve in nonpolar. This means that substances are more likely to dissolve in other substances with similar chemical properties. As with most systems, this one will try to minimize its total energy. This is a bit like the old slogan “Safety is no accident”. The rule states that polar solutes will dissolve in polar solvents and non-polar solutes will dissolve in non-polar solvents. Can Someone Explain Why the "Like Dissolves Like" Chemistry Solubility Rule Works Like I Am 5. The types of intermolecular forces dictate these results. And here when we say "polar" we mean "charge-separated". > Why is this so? 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. I was wondering why is it that like solvents dissolve like solutes? 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. It is most often used when discussing polar and nonpolar solvents. Chemists say that ‘like dissolves like,’ meaning that substances with similar chemical characteristics will dissolve in each other. 2 comments. For example, why doesn't a polar molecule dissolve a non-polar molecule. 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. If the Gibbs free energy change of a process is negative then the process is likely to happen. Question 8 See the information in Question 6 of the Makeup Remover pdf file opened in the first step of this assignment. This view is … This statement indicates that a solute will dissolve best in a solvent that has a similar chemical structure to itself. 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. For example it says polar molecules will dissolve polar molecules and non-polar molecules will dissolve non-polar molecules? Also, how do non-polar molecules dissolve non-polar molecules? Hexane has a six carbon chain and is nonpolar. Question 7 Based on the "like dissolves like" principle, please explain why the product you identified as not homogeneous has two different layers. 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. These examples illustrate what is meant by the comment "like dissolves like". 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 does this rule exist and how does it work? like dissolves like. This means that polar molecules will dissolve polar molecules, and non-polar molecules will dissolve with non-polar molecules. How about the other two products? Once you know what makes two (or more) substances “likes”, the answer is self-evident. A popular aphorism used for predicting solubility is "like dissolves like" also expressed in the Latin language as "Similia similibus solventur". 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