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When particles are suspended in a viscous (thick) mixture. Lots of oatmeal based lotions are colloidal.
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What is the difference between Dispersion and Skewness?
distinguish between dispersion and skewness
What is dispersion and various measures of dispersion?
Dispersion is the act of spreading people or things (like seeds) out over a large area. Measures of dispersion tell us the degree of variation of values in a sample or population.
What is an example of a colloidal dispersion?
Simply put "a perminent distribution of the substance in the solvent". Colloids don't really form true solutions like sodium chloride does with water. Think of "Milk" as a great example. Water, Fats, and Proteins all get mixed together to make milk. The fats and proteins don't really get broken down, just kind of suspended in the mix.
What is natural dispersion?
Dense smoke from a forest fire - would disperse in the atmosphere. This would be an example of natural dispersion
What is difference between absolute measure of dispersion and relative measures of dispersion?
The Absolute Measure of dispersion is basically the measure of variation from the mean such as standard deviation. On the other hand the relative measure of dispersion is basically the position of a certain variable with reference to or as compared with the other variables. Such as the percentiles or the z-score.
What are three examples of colliods?
Three examples of colloids include milk (a colloidal dispersion of fat particles in water), fog (a colloidal dispersion of liquid water droplets in air), and whipped cream (a colloidal dispersion of air bubbles in liquid cream).
What kind of colloidal dispersion is a sol?
solid in a liquid
An emulsion is a colloidal dispersion of a?
An emulsion is a colloidal dispersion of two or more immiscible liquids, where one liquid is dispersed in the other in the form of small droplets.
Can you separte a colloidal dispersion using a filter paper?
yes!
Why do most colloids have electrical charges?
One of the most important properties of colloidal solutions is that colloidal particles posses a definite type of electrical charge. In a particular colloidal solution, all the colloidal particles carry the same type of charge, while the dispersion medium has an equal but opposite charge. Thus, the charge on colloidal particles is balanced by that of the dispersion medium and the colloidal solution as a whole is electrically neutral.
What is the scattering of a beam of visible light by the particles in a colloidal dispersion?
Tyndall effect
What is a mixture of solid and liquid which will separate if allowed to stand?
sand and water.
An aerosol dispenser contains a colloidal dispersion of?
particles suspended in a gas or liquid. When the dispenser is activated, the colloidal dispersion is released as a fine mist or spray. This allows for the efficient distribution of the particles for various applications such as air fresheners, insect repellents, or medications.
What is one property of skim milk indicating that it is a colloidal dispersion?
One property of skim milk indicating that it is a colloidal dispersion is its opalescent or milky appearance, which is due to the scattering of light by the dispersed fat globules. This indicates that the fat globules are suspended in the liquid without settling out.
Is homogenized milk mechanical mixture or solution?
It is classified as a colloidal dispersion. Where elements are suspended in another medium and are evenly dispersed through that medium. Homogenization of milk involves mixing milk and milk fat(cream) under high pressure to more evenly disperse milk fat through the milk. It is still a colloidal dispersion. *Note: Addition of some chemicals, colloidal agents, can aid colloids in maintaining a dispersion. Other chemicals known as flocculants aid in the collection of colloidal material into polymer chains which clump together and precipitate out of the fluid.
Is smoke solution?
Smoke is a colloidal dispersion. The medium phase for smoke is the air and the particle phase are solid such as dust.
What is difference between sol and gel and emulsion?
Sol is a colloidal dispersion where solid particles are suspended in a liquid medium. Gel is a colloidal system where a liquid is dispersed in a solid network forming a semi-solid material. Emulsion is a colloidal dispersion of two immiscible liquids where one liquid is dispersed in the other in the form of droplets.
