Distillation

Hey Guyz .... Nw im in class ...with  Mr Oon and My classmates...My partner that i am doing the assignment is Rui Hao ( The Cutest boy ever ) ...Hahaha...
Today we are separating some mixtures from PLANET COLA !
Its fun that the boiling of the cola is so bubbly ..
Its Fun DUDE @

Filtration

Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. Oversize solids in the fluid are retained, but the separation is not complete; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size and filter thickness). Filtration is also used to describe some biological processes, especially in water treatment and sewage treatment in which undesirable constituents are removed by absorption into a biological film grown on or in the filter medium as in slow sand filtration.

• Filtration is used to separate particles and fluid in a suspension, where the fluid can be a liquid, a gas or a supercritical fluid. Depending on the application, either one or both of the components may be isolated.

Methods :

There are many different methods of filtration; all aim to attain the separation of substances. Separation is achieved by some form of interaction between the substance or objects to be removed and the filter. The substance that is to pass through the filter must be a fluid, i.e. a liquid or gas. Methods of filtration vary depending on the location of the targeted material, i.e. whether it is dissolved in the fluid phase or suspended as a solid

home.engineering.iastate.edu/~leeuwen/CE%20523/.../Filtration.ppt‎

Thank you !

DenSity

Density, the ratio of the mass of a substance to its volume. The greater the mass per given volume, the greater is the density. Lead, for example, has a greater density than aluminum because a given volume of lead weighs more—that is, has a greater mass—than an equal volume of aluminum. The density of a material depends not only on its composition, but also on its temperature and, especially in the case of gases, on pressure. Density is commonly expressed in such units as pounds per cubic foot, grams per cubic centimeter, and grams per liter.

In general, when a substance changes from a gas into a liquid or from a liquid into a solid, its density increases. A notable exception is water; its density decreases when it changes from a liquid into a solid.

Specific gravity is the ratio of the density of one substance to that of another substance used as a standard. The most common standard for solids and liquids is distilled water at 39.2 F. (4 C.), which has a density of 62.4 pounds per cubic foot, or 1 gram per cubic centimeter. The standard for gases is usually air, at the same pressure and temperature as the substance being rated. .)

Here is a video !

Here is A PPT File !

www.iteachbio.com/skills/Density/Density.ppt‎

I learnt a lot from this Chapter ... Its damn COOL !

RefelcTion

3 things That i have learnt !
~Different separation techniques !
~Properties of solute , solvent , solution !
~Factors that affect solubility !

2 thing that can be improved !
~ I want to use metal balls instead of  ping pong balls !
~The comic could have been summarized !

1 thing I want to know about !
~ I want to know if we can separate sugar from sand .

Chap 7 MindMaps !

Hey Guyz this is the Chapter 7 MindMap !
Click on the photo for fullscreen !

Chapter 6 MindMaps

Hey Guyz this is the Chapter 6 MindMap ! Click on the photo for fullscreen !

Paper Chromatography

This is the Chromatography test that i did with my partner. The ink stained and moved upwards because of the chromatography paper. It took just 2 minutes for the ink to move up. It was a fun test overall .

Mind Maps ... Acids~Alkali

Hey Guyz ... Check this out ! These are my MindMaps of the topic called `Acids and Alkali `