CBSE-12th/2011/CHEMISTRY
... larger in size. so lp repulsion is less significant. Also, S-S bond is stronger than O-O bond & S=S is less strong(less than 2 S-S bonds). This is also affected by the fact that O forms strong bonds with mostly other elements than itself. Ans.13 (i)In aqueous solution, Cu+ ion undergoes oxidation to ...
... larger in size. so lp repulsion is less significant. Also, S-S bond is stronger than O-O bond & S=S is less strong(less than 2 S-S bonds). This is also affected by the fact that O forms strong bonds with mostly other elements than itself. Ans.13 (i)In aqueous solution, Cu+ ion undergoes oxidation to ...
Spring 2002 - Kwantlen Polytechnic University
... b. The solution shows a positive deviation from Raoult’s Law. c. The solution shows a negative deviation from Raoult’s Law and possesses a minimum boiling point azeotrope. d. The solution shows a negative deviation from Raoult’s Law and possesses a maximum boiling point azeorope. e. The solution pro ...
... b. The solution shows a positive deviation from Raoult’s Law. c. The solution shows a negative deviation from Raoult’s Law and possesses a minimum boiling point azeotrope. d. The solution shows a negative deviation from Raoult’s Law and possesses a maximum boiling point azeorope. e. The solution pro ...
Name ______ Write formulas for the reactants and predicted
... Solid ammonium carbonate is added to a saturated solution of barium hydroxide. (NH4)2CO3 + Ba2+ + 2 OH- ...
... Solid ammonium carbonate is added to a saturated solution of barium hydroxide. (NH4)2CO3 + Ba2+ + 2 OH- ...
BC10TEXTCH05_Sec3
... 3. List three carbon-containing compounds that are considered inorganic. 4. List three inorganic compounds that do not contain carbon. 5. What two elements are present in a hydrocarbon? ...
... 3. List three carbon-containing compounds that are considered inorganic. 4. List three inorganic compounds that do not contain carbon. 5. What two elements are present in a hydrocarbon? ...
2.5 THE NAMES AND FORMULAS OF COMPOUNDS
... explain many of the properties of ionic compounds, but they aren’t sufficient to explain the physical state of molecular compounds. If covalent bonds were the only forces at work, molecular compounds would all be gases, as there would be no attraction between the molecules strong enough to order the ...
... explain many of the properties of ionic compounds, but they aren’t sufficient to explain the physical state of molecular compounds. If covalent bonds were the only forces at work, molecular compounds would all be gases, as there would be no attraction between the molecules strong enough to order the ...
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.