Electric Plating
Electric Plating Electroplating is a technique of depositing a thin film of another metal on the surface of a metal. (-) The electrode is connected to the object to be plated, (+) The electrode is connected … more
Chemistry Simulation
Chemical Cell (Voltaic Cell, Daniel Cell)
Electricity production before Volta Before chemical cells, such as dry cells, there was only one thing we knew as a way to produce electricity. That is rubbing amber, glass, or metal. Voltaic Cell Alessandro Volta (1745-1827) … more
Avogadro’s Law
Avogadro’s Law The Italian scientist Avogadro (1776-1856) introduced the molecules’ concept to explain gases’ reactions. According to his theory, the volume of any gas at the same temperature and pressure is proportional to the molecules’ number. … more
Addition Polymerization
Addition Polymerization It is a reaction that forms a polymer compound while a double bond of a monomer forms a new single bond. When the monomers are bonded, no other small molecules are produced other than … more
Vapor Pressure Lowering
Equal volumes of sugar water and distilled water is in the same cup. Which solution will evaporate faster? Vapor pressure lowering of the solution When sugar (non-volatile solute) dissolves in water, a strong attraction acts between … more
Ion Exchange Resin
Magic to turn hard water into soft water Soap does not dissolve well in hard water. On the other hand, soap is well solved in soft water. This is because hard water contains calcium ions(Ca2+) or … more
Countercurrent exchange of Distillation equipment
In this simulation, The red arrow indicates high temperature, blue indicates low temperature, and purple indicates medium temperature. The temperature values are for your understanding only and may differ from the actual values. The initial temperature … more
Carnot Engines
A heat engine A heat engine is a machine that moves by moving energy from a hot space to a cold space. In this process, the heat engine converts some of the heat energy into mechanical … more
Bernoulli’s Principle
This simulation is programmed so that the average velocity of fluid particles flowing through the pipe is constant. What does it mean that the fluid collides against the inner wall of the tube? If the fluid … more
Activity Series of Metals
The metal atom’s exchange ratio due to the ion’s valence is ignored. Ionization tendency of metal The tendency of metals to lose electrons and become cations is called the ‘ionization tendency.’ The ionization sequence is an … more
Convection
Convection When you boil water in the kettle, even if you heat only the bottom, the whole water becomes evenly hot. This is because water transfers heat while moving directly. In this way, liquid or gaseous … more
Brownian motion
Brownian movement Botanist Robert Brown, while observing pollen on the water’s surface, He noticed that the pollen was constantly moving in random directions. At that time (1827), Brown believed that these movements were driven by special … more