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coordination compounds - Ahlcon Public School , Mayur Vihar Ph
... An element ‘A’ exists as a yellow solid in standard state. If forms volatile hydride ‘B’ which is a foul smelling gas and is extensively used in analysis of salts. When treated with oxygen ‘B’ forum an oxide ‘C’ which is a colourless punjent smelling gas. This gas when passed through acidified KMnO4 ...
... An element ‘A’ exists as a yellow solid in standard state. If forms volatile hydride ‘B’ which is a foul smelling gas and is extensively used in analysis of salts. When treated with oxygen ‘B’ forum an oxide ‘C’ which is a colourless punjent smelling gas. This gas when passed through acidified KMnO4 ...
CONDUCTOMETRY
... renewed, this eliminates the poisoning effect. Mercury forms amalgams (solid solution) with many metals. The diffusion current assumed a steady value immediately after each change of applied potential and is reproducible. The large hydrogen over-potential of mercury renders possible deposition of ...
... renewed, this eliminates the poisoning effect. Mercury forms amalgams (solid solution) with many metals. The diffusion current assumed a steady value immediately after each change of applied potential and is reproducible. The large hydrogen over-potential of mercury renders possible deposition of ...
CH4 Student Revision Guides pdf | GCE AS/A
... Optical isomerism arises mainly from molecules which have four different atoms or groups of atoms attached to a tetrahedral carbon atom. The carbon atom is said to be an asymmetric carbon atom, since the molecule does not possess a plane or axis of symmetry. A ball and stick model shows the mirror i ...
... Optical isomerism arises mainly from molecules which have four different atoms or groups of atoms attached to a tetrahedral carbon atom. The carbon atom is said to be an asymmetric carbon atom, since the molecule does not possess a plane or axis of symmetry. A ball and stick model shows the mirror i ...
Chemistry Test Ch 11 Stoichiometry
... Directions: Show all work!!! No Work Shown, no credit given! Include all units and chemical formulas. 1. Balance the following equation and work the problems below: ____N2 + ___ H2 ___ NH3 A. If 6.52 L of H2 react with excess nitrogen what volume of NH3 is produced? B. In order to produce 6.52 L o ...
... Directions: Show all work!!! No Work Shown, no credit given! Include all units and chemical formulas. 1. Balance the following equation and work the problems below: ____N2 + ___ H2 ___ NH3 A. If 6.52 L of H2 react with excess nitrogen what volume of NH3 is produced? B. In order to produce 6.52 L o ...
sample chapter
... All solutes that dissolve in water fit into one of two categories: electrolytes and nonelectrolytes. An electrolyte is a substance that, when dissolved in water, results in a solution that can conduct electricity. A nonelectrolyte does not conduct electricity when dissolved in water. Figure 4.1 show ...
... All solutes that dissolve in water fit into one of two categories: electrolytes and nonelectrolytes. An electrolyte is a substance that, when dissolved in water, results in a solution that can conduct electricity. A nonelectrolyte does not conduct electricity when dissolved in water. Figure 4.1 show ...
Insertion of SO2 into the Metal−Carbon Bonds of Rhodium and
... anion (OTf- for 7a, BF4- for 7b) might not be bound to the metal. Were this not the case, a greater difference would be expected in the 1H spectra of 7a and 7b. Reaction of 7a or 7b with an excess of dry Et3N regenerates 2b. Consequently, it appears the compounds 7a and 7b are protonated derivatives ...
... anion (OTf- for 7a, BF4- for 7b) might not be bound to the metal. Were this not the case, a greater difference would be expected in the 1H spectra of 7a and 7b. Reaction of 7a or 7b with an excess of dry Et3N regenerates 2b. Consequently, it appears the compounds 7a and 7b are protonated derivatives ...
HONORS CHEMISTRY
... A detergent, sodium dodecanesulfonate, C12H25OSO3Na, is made by the successive reactions of sulfuric acid and sodium hydroxide on dodecanol, C12H25OH. If any manufacturer needs to produce 30.0 metric tons of detergent daily, how many metric tons of dodecanol are needed? Assume the reaction is comple ...
... A detergent, sodium dodecanesulfonate, C12H25OSO3Na, is made by the successive reactions of sulfuric acid and sodium hydroxide on dodecanol, C12H25OH. If any manufacturer needs to produce 30.0 metric tons of detergent daily, how many metric tons of dodecanol are needed? Assume the reaction is comple ...
KEY
... to OH− . Therefore H3 O+ is acting as an acid and OH− is acting as a base. In the reverse reaction, NH+ 4 is the proton donor and thus, it is the other acid. 028 10.0 points In the two reactions represented by HCN + H2 O ⇀ ↽ CN− + H3 O+ , the two Bronsted-Lowry acids are ...
... to OH− . Therefore H3 O+ is acting as an acid and OH− is acting as a base. In the reverse reaction, NH+ 4 is the proton donor and thus, it is the other acid. 028 10.0 points In the two reactions represented by HCN + H2 O ⇀ ↽ CN− + H3 O+ , the two Bronsted-Lowry acids are ...
Year 11 C2 Mock Exam Revision Questions
... Phosphorus and fluorine form a covalent compound, phosphorus trifluoride. Complete the sentences below which are about this compound. Phosphorus trifluoride is made up of phosphorus and fluorine ................................ These are joined together by sharing pairs of .......................... ...
... Phosphorus and fluorine form a covalent compound, phosphorus trifluoride. Complete the sentences below which are about this compound. Phosphorus trifluoride is made up of phosphorus and fluorine ................................ These are joined together by sharing pairs of .......................... ...
1.24 calculations and chemical reactions
... A solution of this acid was prepared by dissolving 2.02 g of H2A in water and making the volume up to 250 cm3 in a volumetric flask. A 25.0 cm3 sample of this solution required 22.80 cm3 of 0.150 mol dm–3 aqueous NaOH for complete reaction. Calculate the relative molecular mass, Mr, of H2A 4.2) Sodi ...
... A solution of this acid was prepared by dissolving 2.02 g of H2A in water and making the volume up to 250 cm3 in a volumetric flask. A 25.0 cm3 sample of this solution required 22.80 cm3 of 0.150 mol dm–3 aqueous NaOH for complete reaction. Calculate the relative molecular mass, Mr, of H2A 4.2) Sodi ...
Step 2
... number to each element wherever it appears in the equation. If the reaction is a redox reaction, identify the element that undergoes an increase in oxidation number and the elements the undergoes a decrease. Find the numerical values of the increase and decrease. Determine the smallest whole-number ...
... number to each element wherever it appears in the equation. If the reaction is a redox reaction, identify the element that undergoes an increase in oxidation number and the elements the undergoes a decrease. Find the numerical values of the increase and decrease. Determine the smallest whole-number ...
The Major Classes of Chemical Reactions
... Although many ionic compounds dissolve in water, many others do not. In the latter cases, the electrostatic attraction among ions in the compound remains greater than the attraction between ions and water molecules, so the solid stays largely intact. Actually, these so-called insoluble substances do ...
... Although many ionic compounds dissolve in water, many others do not. In the latter cases, the electrostatic attraction among ions in the compound remains greater than the attraction between ions and water molecules, so the solid stays largely intact. Actually, these so-called insoluble substances do ...
E:\My Documents\sch4u\SCH4U review McKay answers.wpd
... 2) You are given a 100.0 mL sample of 0.0010 M silver nitrate and 100.0 mL of solution made by dissolving 6.4X10-4 g of sodium carbonate (not sodium bicarbonate) in enough water to make 100.0 mL of solution. If the two solutions are mixed at 25/C, will a precipitate of silver carbonate form? (Ans; ...
... 2) You are given a 100.0 mL sample of 0.0010 M silver nitrate and 100.0 mL of solution made by dissolving 6.4X10-4 g of sodium carbonate (not sodium bicarbonate) in enough water to make 100.0 mL of solution. If the two solutions are mixed at 25/C, will a precipitate of silver carbonate form? (Ans; ...
SCH3U Chemistry 11 Course Notes 2015
... 14. Clean your lab area before leaving, including washing & putting away equipment, & removal of all solids from sinks & drains. 15. Beware of any liquids or solids on the lab benches—they may be corrosive. 16. Ensure that you understand the safe procedure to be followed before attempting any experi ...
... 14. Clean your lab area before leaving, including washing & putting away equipment, & removal of all solids from sinks & drains. 15. Beware of any liquids or solids on the lab benches—they may be corrosive. 16. Ensure that you understand the safe procedure to be followed before attempting any experi ...
C:\SUBJECTS\SUBJECTS\Chemistry
... E. Ion (T), copper (L), aluminium (TL). In the preparation of some pure crystals of Cu (NO3)2 starting with CuO, a student gave the following statements as steps he employed. Which of these shows a flaw in his report? A. Some CuO was reacted with excess dilute H2SO4 B. The solution was concentrated ...
... E. Ion (T), copper (L), aluminium (TL). In the preparation of some pure crystals of Cu (NO3)2 starting with CuO, a student gave the following statements as steps he employed. Which of these shows a flaw in his report? A. Some CuO was reacted with excess dilute H2SO4 B. The solution was concentrated ...
PDF document
... currently described in the literature. Using methods such as HPLC, insoluble additives should be removed to prevent the columns from becoming blocked. Also, some HPLC methods for ASA determination using on-line solid-phase extraction and post-column photochemical derivatization. For the GLC methods, ...
... currently described in the literature. Using methods such as HPLC, insoluble additives should be removed to prevent the columns from becoming blocked. Also, some HPLC methods for ASA determination using on-line solid-phase extraction and post-column photochemical derivatization. For the GLC methods, ...
Chapter 2 - Chemistry
... 7. hydroxides (OH−) except those of the alkali metals, Ba2+, Sr2+, and NH4+. Calcium hydroxide is slightly soluble 8. carbonates, phosphates, sulfides, and sulfites except those of the alkali metals and the ammonium ion (NH4+) 9. for salts of Cr2O72−, P3−, CrO42−, C2O42−, assume they are insoluble e ...
... 7. hydroxides (OH−) except those of the alkali metals, Ba2+, Sr2+, and NH4+. Calcium hydroxide is slightly soluble 8. carbonates, phosphates, sulfides, and sulfites except those of the alkali metals and the ammonium ion (NH4+) 9. for salts of Cr2O72−, P3−, CrO42−, C2O42−, assume they are insoluble e ...
Estimate the strength of given sodium carbonate solution
... 1. Neutralisation titration (or acid- base titration) These include the titration of free bases with a standard acid and the titration of free acids with a standard base. 2. Redox titration (oxidation –reduction titration) The standard solutions are either oxidising or reducing agents. 3. Complexome ...
... 1. Neutralisation titration (or acid- base titration) These include the titration of free bases with a standard acid and the titration of free acids with a standard base. 2. Redox titration (oxidation –reduction titration) The standard solutions are either oxidising or reducing agents. 3. Complexome ...
Experiment 1 - Melting Points - NAU jan.ucc.nau.edu web server
... The melting point of a substance (the temperature at which a substance melts) is a physical property that can be used for its identification. It is a measure of the amount of kinetic energy (heat) that must be supplied to the particles of the substance in order to overcome the intermolecular forces ...
... The melting point of a substance (the temperature at which a substance melts) is a physical property that can be used for its identification. It is a measure of the amount of kinetic energy (heat) that must be supplied to the particles of the substance in order to overcome the intermolecular forces ...
Chemical Quantities: Stoichiometry and the Mole
... you follow the steps you can get to the answer. Think about the “steps” I mentioned when we talked about problem solving. When we learned how to write the names of compounds for their formulas, and the formulas for the names. When we do conversions and stoichiometry. I am half cliche when I describe ...
... you follow the steps you can get to the answer. Think about the “steps” I mentioned when we talked about problem solving. When we learned how to write the names of compounds for their formulas, and the formulas for the names. When we do conversions and stoichiometry. I am half cliche when I describe ...
Chemistry JAMB Past Questions
... of AgNO3 cell during the same period would be [Cu = 63, Ag –108] A. 0.54 g B. 1.08 g C. 1.62 g D. 2.16 g 3.24 g In the reaction Fe + Cu2+ Fe2+ + Cu, iron displaces copper ions to form copper. This is due to the fact that ...
... of AgNO3 cell during the same period would be [Cu = 63, Ag –108] A. 0.54 g B. 1.08 g C. 1.62 g D. 2.16 g 3.24 g In the reaction Fe + Cu2+ Fe2+ + Cu, iron displaces copper ions to form copper. This is due to the fact that ...
Descriptive Chemistry of Elements p
... In the dimer, each Al atom has 8 valence electrons and AlCl bond has the covalent character. Aluminium chloride is used as a Lewis acid in synthetic organic chemistry, e.g. Freidel-Craft reaction. ...
... In the dimer, each Al atom has 8 valence electrons and AlCl bond has the covalent character. Aluminium chloride is used as a Lewis acid in synthetic organic chemistry, e.g. Freidel-Craft reaction. ...
Hydroxide
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, a ligand, a nucleophile and a catalyst. The hydroxide ion forms salts, some of which dissociate in aqueous solution, liberating solvated hydroxide ions. Sodium hydroxide is a multi-million-ton per annum commodity chemical. A hydroxide attached to a strongly electropositive center may itself ionize, liberating a hydrogen cation (H+), making the parent compound an acid.The corresponding electrically neutral compound •HO is the hydroxyl radical. The corresponding covalently-bound group -OH of atoms is the hydroxyl group.Hydroxide ion and hydroxyl group are nucleophiles and can act as a catalyst in organic chemistry.Many inorganic substances which bear the word ""hydroxide"" in their names are not ionic compounds of the hydroxide ion, but covalent compounds which contain hydroxyl groups.