I love chocolate especially at Saturday, May 9, 2009 | back to top, baby
Coke + Mentos What causes Coke + Mentos to react? What is in the coke and mentos that reacts with each other? This video shows what... I'm sorry that it is not very clear...
Methods of Separating
I love chocolate especially at Friday, May 8, 2009 | back to top, baby
Separating Mixture/Compounds There are many ways to separate mixtures/compounds. Eg. Filtration, Using Magnet etc. These are some ways to separate mixtures/compounds.
Chromatography There are many types of chromatography. For example, Planar chromatography , Paper chromatography and Thin layer chromatography. As we are still Sec 1s we only use paper chromatography (so far) so I will be talking about that :D
Paper chromatography is a technique that involves placing a small dot or line of sample solution onto a strip of chromatography paper. The paper is placed in a jar containing a shallow layer of solvent and sealed. As the solvent rises through the paper, it meets the sample mixture which starts to travel up the paper with the solvent. The small dot/line of sample solution will then split into many different parts if it is not pure.
Crystallisation Crystallization is the (natural or artificial) process of formation of solid crystals precipitating from a solution, melt or more rarely deposited directly from a gas. Crystallization is also a chemical solid-liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.
Distillation Distillation is a method of separating mixtures based on differences in their volatilities in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction. Commercially, distillation has a number of uses. It is used to separate crude oil into more fractions for specific uses such as transport, power generation and heating. Water is distilled to remove impurities, such as salt from seawater. Air is distilled to separate its components—notably oxygen, nitrogen, and argon—for industrial use. Distillation of fermented solutions has been used since ancient times to produce distilled beverages with a higher alcohol content. The premises where distillation is carried out, especially distillation of alcohol, are known as a distillery.
Filtration (using filter paper) First, there must be some liquid with insolubles inside. Then, using a filter funnel and paper, you pur the liquid into the filter funnel and let it filter into a beaker of some sort. When filtered, the solid particles, i.e. the residue, will be collected on the filter paper.
About Me
Hello,I am lishan
This is my profile.
So lemme introduce a bit about myself here, a regular muggle living in an all to muggle-world, a little part of me died when i realised i'd never get to go to hogwarts.
I'm a weird nerdy girl (or so the others said)...and i love photography...
As you can see, I love to eat candies in class and
listening to my Ipod when outside noise irritates me
I like nibbling on sour rainbow skittles and I love coffee
yay!
Coke + Mentos
i love chocolate! especially at Saturday, May 9, 2009 | back to top
Coke + Mentos What causes Coke + Mentos to react? What is in the coke and mentos that reacts with each other? This video shows what... I'm sorry that it is not very clear...
Methods of Separating
i love chocolate! especially at Friday, May 8, 2009 | back to top
Separating Mixture/Compounds There are many ways to separate mixtures/compounds. Eg. Filtration, Using Magnet etc. These are some ways to separate mixtures/compounds.
Chromatography There are many types of chromatography. For example, Planar chromatography , Paper chromatography and Thin layer chromatography. As we are still Sec 1s we only use paper chromatography (so far) so I will be talking about that :D
Paper chromatography is a technique that involves placing a small dot or line of sample solution onto a strip of chromatography paper. The paper is placed in a jar containing a shallow layer of solvent and sealed. As the solvent rises through the paper, it meets the sample mixture which starts to travel up the paper with the solvent. The small dot/line of sample solution will then split into many different parts if it is not pure.
Crystallisation Crystallization is the (natural or artificial) process of formation of solid crystals precipitating from a solution, melt or more rarely deposited directly from a gas. Crystallization is also a chemical solid-liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.
Distillation Distillation is a method of separating mixtures based on differences in their volatilities in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction. Commercially, distillation has a number of uses. It is used to separate crude oil into more fractions for specific uses such as transport, power generation and heating. Water is distilled to remove impurities, such as salt from seawater. Air is distilled to separate its components—notably oxygen, nitrogen, and argon—for industrial use. Distillation of fermented solutions has been used since ancient times to produce distilled beverages with a higher alcohol content. The premises where distillation is carried out, especially distillation of alcohol, are known as a distillery.
Filtration (using filter paper) First, there must be some liquid with insolubles inside. Then, using a filter funnel and paper, you pur the liquid into the filter funnel and let it filter into a beaker of some sort. When filtered, the solid particles, i.e. the residue, will be collected on the filter paper.
Chinese Water Torture...for Melissa
Is it possible to fold paper more than 7 times? Try it with an A4 piece. Was it manageable???
Ever wanted to walk on water? Mythbusters shows how you can :D
Rube Goldberg Machine with the Mythbusters
Domino Coke