Chemistry
... ◦ 2 Parts of a solution Solute – stuff that dissolves Solvent – stuff that the solute dissolves in ...
... ◦ 2 Parts of a solution Solute – stuff that dissolves Solvent – stuff that the solute dissolves in ...
HOMEWORK : CHAPTER 20
... 20.36 The second ionization energy of magnesium is only about twice as great as the first, but the third ionization energy is 10 times as great. Why does it take so much more energy to remove the third electron? 20.38 Helium contains the same number of electrons in its outer shell as do the alkaline ...
... 20.36 The second ionization energy of magnesium is only about twice as great as the first, but the third ionization energy is 10 times as great. Why does it take so much more energy to remove the third electron? 20.38 Helium contains the same number of electrons in its outer shell as do the alkaline ...
+ O2 (g)
... 2. states of reactants and products 3. relative numbers of reactant and product molecules ...
... 2. states of reactants and products 3. relative numbers of reactant and product molecules ...
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... Explain, with reference to the standard electrode potential for sodium and hydrogen, why sodium is manufactured using this method rather than by the electrolysis of aqueous sodium chloride. Na+(aq) + e– ...
... Explain, with reference to the standard electrode potential for sodium and hydrogen, why sodium is manufactured using this method rather than by the electrolysis of aqueous sodium chloride. Na+(aq) + e– ...
03 nanoparticles part 7 File - e-learning
... The technique consists in the chemical reaction of two or more compounds in gas phase and the successive deposition of the produced solid material. The technique results costly for those materials exhibiting low vapor pressure values (ceramics). In the other cases, the technique offers all advantage ...
... The technique consists in the chemical reaction of two or more compounds in gas phase and the successive deposition of the produced solid material. The technique results costly for those materials exhibiting low vapor pressure values (ceramics). In the other cases, the technique offers all advantage ...
NAME
... b) aluminum bromide solution and chlorine gas react to form aluminum chloride and bromine gas. ...
... b) aluminum bromide solution and chlorine gas react to form aluminum chloride and bromine gas. ...
Simulation of multiphase physico-chemical processes occurring in
... out of the total source of sulfate. Another important source of sulfate is the oxidation of bisulfite by organic peroxides (about 5%-25%). A radical oxidation pathway including transition metal ions seems to be especially important at the begining of the simulation, before the air parcel enters into ...
... out of the total source of sulfate. Another important source of sulfate is the oxidation of bisulfite by organic peroxides (about 5%-25%). A radical oxidation pathway including transition metal ions seems to be especially important at the begining of the simulation, before the air parcel enters into ...
Name__________________________ Period_______ Word
... Chemical formulas are used to represent the products and reactants in a reaction. Equations can also contain much more information. Conditions under which a reaction occurs are often found above the arrow. An example of a reaction condition is the heat symbol (∆ ), which indicates that the reactants ...
... Chemical formulas are used to represent the products and reactants in a reaction. Equations can also contain much more information. Conditions under which a reaction occurs are often found above the arrow. An example of a reaction condition is the heat symbol (∆ ), which indicates that the reactants ...
Liquid–liquid extraction
Liquid–liquid extraction (LLE) consists in transferring one (or more) solute(s) contained in a feed solution to another immiscible liquid (solvent). The solvent that is enriched in solute(s) is called extract. The feed solution that is depleted in solute(s) is called raffinate.Liquid–liquid extraction also known as solvent extraction and partitioning, is a method to separate compounds based on their relative solubilities in two different immiscible liquids, usually water and an organic solvent. It is an extraction of a substance from one liquid into another liquid phase. Liquid–liquid extraction is a basic technique in chemical laboratories, where it is performed using a variety of apparatus, from separatory funnels to countercurrent distribution equipment. This type of process is commonly performed after a chemical reaction as part of the work-up.The term partitioning is commonly used to refer to the underlying chemical and physical processes involved in liquid–liquid extraction, but on another reading may be fully synonymous with it. The term solvent extraction can also refer to the separation of a substance from a mixture by preferentially dissolving that substance in a suitable solvent. In that case, a soluble compound is separated from an insoluble compound or a complex matrix.Solvent extraction is used in nuclear reprocessing, ore processing, the production of fine organic compounds, the processing of perfumes, the production of vegetable oils and biodiesel, and other industries.Liquid–liquid extraction is possible in non-aqueous systems: In a system consisting of a molten metal in contact with molten salts, metals can be extracted from one phase to the other. This is related to a mercury electrode where a metal can be reduced, the metal will often then dissolve in the mercury to form an amalgam that modifies its electrochemistry greatly. For example, it is possible for sodium cations to be reduced at a mercury cathode to form sodium amalgam, while at an inert electrode (such as platinum) the sodium cations are not reduced. Instead, water is reduced to hydrogen. A detergent or fine solid can be used to stabilize an emulsion, or third phase.