Nadine has taught nursing for 12 years and has a PhD in Nursing research
What is Solute Concentration?
The definition of solute concentration is the amount of solutes/particles that are dissolved in a solution. Other terms must be defined also in order for you to understand the lesson. First, let's define solvent. A solvent is the solution, or liquid, part of the solute concentration. Together, the solute and the solvent become the solution.
Next, let's define solubility. This is defined as the ability of a solute to be dissolved in a solvent. If the solute is small, it can be dissolved quicker in a solvent. But, the rate of solution is defined as the time it takes to dissolve the solute in the solvent.
Finally, we need to define polarity. Each molecule is made up of electrons. The unequal sharing of electrons creates polarity. The molecular structure of a substance and how the structure breaks down, has to do with the polarity. A substance can have a polar or non-polar nature.
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The characteristics of a solute are that it can be a liquid, a solid, or a gas. A solute has a rate of solution - or how fast the solute dissolves. The factor that most influences the rate of solution is the amount of solute already dissolved in the solution.
Another fact that affects solubility is temperature. As the temperature of the solvent increases, solubility increases. Additionally, pressure and the nature of the solute and solvent affect solubility.
It is important to know that in any solution, there is usually more solvent than solute. Now, let's turn our attention to how a solute dissolves in a solvent. This has to do with polarity. Remember that a polar molecule has unequal sharing of electrons. So a non-polar molecule has equal sharing of electrons.
The basic principle of polarity is a polar solute likes a polar solvent - and the same is true for non-polar solute and solvents. So, a polar solute will dissolve quicker in a polar solvent.
An example of the solute concentration and the other terms defined in this lesson includes sugar and water. The sugar is the solute and the water is the solvent. Together when the sugar is dissolved in the water you have a sugar solution.
If you want the sugar to be dissolved quicker in water - you should use smaller cubes of sugar and increase the temperature of the water. However, the more sugar that is placed into the water the longer it takes to dissolve.
Let's review. The definition of solute concentration is the amount of solutes and particles that are dissolved in a solution. Solubility is the ability of a solute to be dissolved in a solvent. Determinants of solubility include the polar nature of the solute and solvents, the temperature of the solvent, and the amount of solute already dissolved in the solvent.
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Solute Concentration: Definition & Overview
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