Lecture 21 – Cations, Anions and Hydrolysis in
... held very tightly by the cation weakening O-H bonds more than would otherwise be expected. ...
... held very tightly by the cation weakening O-H bonds more than would otherwise be expected. ...
Chapter 4: Aqueous Reactions and Solution
... Search only the (aq) species for the strong electrolytes! 2. Rewrite the strong electrolytes as separated ions. All other species are rewritten without modification. 3. Cancel any ions that appear on both sides of the reaction. These are called spectator ions. 4. Rewrite the equation, omitting the ...
... Search only the (aq) species for the strong electrolytes! 2. Rewrite the strong electrolytes as separated ions. All other species are rewritten without modification. 3. Cancel any ions that appear on both sides of the reaction. These are called spectator ions. 4. Rewrite the equation, omitting the ...
Summary of 5.4
... nitration and Friedel-Crafts reactions including the formation of the electrophile 5.4.1 c Heterolytic, electrophilic substitution (benzene) Electrophilic substitution is possible in benzene rings. In this type of substitution two of the delocalised [pi] electrons on the benzene ring are ...
... nitration and Friedel-Crafts reactions including the formation of the electrophile 5.4.1 c Heterolytic, electrophilic substitution (benzene) Electrophilic substitution is possible in benzene rings. In this type of substitution two of the delocalised [pi] electrons on the benzene ring are ...
SC 119 PRACTICE Assessment:
... SC 119 PRACTICE Assessment: 1. Outdoor grilling is a very popular method of cooking. Propane is the gas that is commonly used in grills. Three things are required for a gas grill to ignite: gas, oxygen from the air and a spark.When the grill is turned on, propane is delivered to the igniter, where i ...
... SC 119 PRACTICE Assessment: 1. Outdoor grilling is a very popular method of cooking. Propane is the gas that is commonly used in grills. Three things are required for a gas grill to ignite: gas, oxygen from the air and a spark.When the grill is turned on, propane is delivered to the igniter, where i ...
chemistry - ALLEN Jaipur
... What mass of NaCl (molar mass = 58.5 g mol ⎯1) must be dissolved in 65 g of water to lower the freezing point by 7.5 ͦ C ? The freezing point depression constant, Kf for water is 1.86 kg mol⎯1. Assume van’t Hoff factor for NaCl is 1.87. ...
... What mass of NaCl (molar mass = 58.5 g mol ⎯1) must be dissolved in 65 g of water to lower the freezing point by 7.5 ͦ C ? The freezing point depression constant, Kf for water is 1.86 kg mol⎯1. Assume van’t Hoff factor for NaCl is 1.87. ...
Chapter 8
... 1. Some oxy-acids, when heated, decompose to form water and the nonmetal oxide. Example: Sulfuric acid is heated Example: Nitric acid is heated 2. Some metallic hydroxides (bases), when heated, decompose to form the metal oxide and water. Example: Sodium hydroxide is heated Example: Calcium hydroxid ...
... 1. Some oxy-acids, when heated, decompose to form water and the nonmetal oxide. Example: Sulfuric acid is heated Example: Nitric acid is heated 2. Some metallic hydroxides (bases), when heated, decompose to form the metal oxide and water. Example: Sodium hydroxide is heated Example: Calcium hydroxid ...
Chapter 4
... Dilution Of Solutions Water is added to a small amount of stock solution to make a less concentrated solution. Addition of solvent does not change the mass of solute in a solution but does change the solution concentration. ...
... Dilution Of Solutions Water is added to a small amount of stock solution to make a less concentrated solution. Addition of solvent does not change the mass of solute in a solution but does change the solution concentration. ...
L1 – CHEMISTRY FINAL REVIEW
... capillary action; high specific heat (it takes a lot of energy to raise the temperature of water); only substance in which the solid state is less dense than the liquid state; unusually high BP when compared to other molecular compounds with similar molecular weight. 34. How is a saturation point an ...
... capillary action; high specific heat (it takes a lot of energy to raise the temperature of water); only substance in which the solid state is less dense than the liquid state; unusually high BP when compared to other molecular compounds with similar molecular weight. 34. How is a saturation point an ...
honors final key
... b. 4.58 mol to grams of Al = 124g c. 901.49 g to particles of Carbon dioxide = 1.23x 1025 d. 901.49 g to L of carbon dioxide = 458.9 18. Define molar mass. The mass of a mole of a substance, equal to the atomic mass in grams 19. Give molar mass of a. Vanadium = 50.94g b. Vanadium IV oxide =82.94 c. ...
... b. 4.58 mol to grams of Al = 124g c. 901.49 g to particles of Carbon dioxide = 1.23x 1025 d. 901.49 g to L of carbon dioxide = 458.9 18. Define molar mass. The mass of a mole of a substance, equal to the atomic mass in grams 19. Give molar mass of a. Vanadium = 50.94g b. Vanadium IV oxide =82.94 c. ...
Homework Exercises
... The concentrated ammonia solution is diluted exactly 100 times. The diluted solution of ammonia is titrated with 0.1 moll-1 hydrochloric acid. ...
... The concentrated ammonia solution is diluted exactly 100 times. The diluted solution of ammonia is titrated with 0.1 moll-1 hydrochloric acid. ...
Chap. 4 AQUEOUS RXNS O
... • Metal hydroxides react with (NEUTRALIZE) acids to produce the salt of the acid and H2O: ...
... • Metal hydroxides react with (NEUTRALIZE) acids to produce the salt of the acid and H2O: ...
states of matter - Haiku for Ignatius
... A plasma is a very good conductor of electricity and is affected by magnetic fields. Plasmas, like gases • Plasma is the have an indefinite common state shape and an of matter indefinite volume. ...
... A plasma is a very good conductor of electricity and is affected by magnetic fields. Plasmas, like gases • Plasma is the have an indefinite common state shape and an of matter indefinite volume. ...
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.