The percent of a specified compound or element in an impure sample.
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Creating Malachite egg
One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but...
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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Ozone
We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.
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Why do copper products change color, and what is the name of the process?
Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.
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Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
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Coke
An impure form of carbon obtained by destructive distillation of coal or petroleum.
Anode
In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.
Electrolysis
Process that occurs in electrolytic cells.
Dipole Moment
The product of the distance separating opposite charges of equal magnitude of the charge, a measure of the polarity of a bond or molecule, a measured dipole moment refers to the dipole moment of an entire molecule.
Coordination Sphere
The metal ion and its coordinating ligands but not any uncoordinated counter-ions.
Corrosion
Oxidation of metals in the presence of air and moisture.
Gel
Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.
Dumas Method
A method used to determine the molecular weights of volatile liquids.
Mass Number
The sum of the numbers of protons and neutrons in an atom, an integer.
Zone Refining
A method of purifying a bar of metal by passing it through an induction heater, this causes impurties to move along a melted portion. This method applies the fact when a metal crystallizes on cooling, impurities are automatically expelled as they do not form part of the crystal.
