Mixtures, Solutions and Suspensions
Mixtures
A mixture is a combination of substances which are not chemically joined together.
- Mixtures have the same properties as their components
- There is no fixed proportion between the components
- The components can be separated from the mixture
Examples
- sugar and salt
- air with nitrogen and oxygen
Solutions
A solution is a homogeneous mixture in which one substance (solute) is dissolved in another substance (solvent).
- The components in a solution may not be separated from the solution by leaving it to stand, or by filtration
If a material dissolves in a liquid the material is said to be soluble. A solution is saturated if no more solute can be dissolved with temperature remaining constant.
Examples
- salt in sea water
Suspensions
A suspension is a mixture of liquids with particles of a solid which may not dissolve in the liquid.
- The solid may be separated from the liquid by leaving it to stand, or by filtration
Examples
- sand in water
Related Topics
• Basics
Basic engineering data. SI-system, unit converters, physical constants, drawing scales and more.
• Fluid Mechanics
The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
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Guidelines or solubility rules to predict whether or not a given ionic compound is soluble in water at room temperature.
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It is possible to estimate the density of a liquid-liquid solution from the density of the solute and the solvent. However, due to shrinkage, the estimate will be a bit too low.
Mixing Fluids
Final mass and temperature when mixing fluids.
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Rules for naming inorganic ionic and covalent types of chemical compounds.
Solubility
The amount of a solute that can be dissolved in a solvent.
Solubility Product Constants
The equilibrium constant, Ksp, for aqueous solutions of ionic compounds at 25°C.
Solutions, Molarity and Dilution
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Dynamic viscosities of sucrose water solutions vs. temperature.