What Is the Scientific Meaning of Solubility?

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The scientific meaning of solubility is a process that refers to whether or not something will dissolve. Find out about the scientific meaning of solubility with help from an experienced chemistry and science professional in this free video clip.

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Video Transcript

Hi, I'm Robin Higgins, and this is what is the scientific meaning of solubility? Alright so solubility is the property of a solid, liquid, or gaseous substance called a solute to dissolve in a solid liquid or gaseous solvent to form a homogeneous solution of the solute in the solvent. Alright what does that mean? Basically if something dissolves in something else it's soluble in that thing. So if we put a bunch of sugar in water, stir it around and it completely dissolves we know that sugar is soluble in water. So lets go through a couple of examples just to make sure we understand what solubility is. So first one sucrose what I just said, a type of sugar. This is yes, soluble in water. It will dissolve. Lets go to plastic. If you put a pen or a DVD case in water it will not dissolve. This is not soluble. Next lets go to carbon dioxide. So even though carbon dioxide is a gas at room temperature it actually is soluble in water. So this is what carbonation is in sodas so. You put the carbon dioxide into our sodas, it's completely soluble. It has dissolved. Moving along lets go to a diamond. Oh my gosh I hope not. Diamonds are not soluble in water. You can not ruin your diamond by putting it in a cup of water. Moving onto orange juice. So orange juice is interesting because maybe we'd want to say yes. But if you remember orange juice also has pulp. And pulp no matter how much you stir does not go into water. So orange juice is not soluble. This is a good time to go over the definition of what a homogeneous solution means. So homogeneous means that it's exactly the same everywhere you look. So if we take a different portion of orange juice, if you look at the top of the cup it looks a certain way. If you look at the bottom of the cup it will look different because of the pulp and the other particles. This is not homogeneous. If on the other hand if we take our sugar solution and look at the top of the cup versus the bottom it's going to look exactly the same. That is homogenous. So continuing on lets go to sodium chloride or salt. That is definitely soluble in water. And now we have last but not least oil. So oil if you add it to water will form two layers an it's definitely not soluble. It can not completely dissolve in water. So it's two different. I'm Robin Higgins and this has been what is the scientific meaning of solubility?


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