IGCSE SoW 2013
... • Cl-, Br- and I-, using dilute nitric acid and silver nitrate solution • SO42-, using dilute hydrochloric acid and barium chloride solution • CO32-, using dilute hydrochloric acid and identifying the carbon dioxide evolved ...
... • Cl-, Br- and I-, using dilute nitric acid and silver nitrate solution • SO42-, using dilute hydrochloric acid and barium chloride solution • CO32-, using dilute hydrochloric acid and identifying the carbon dioxide evolved ...
File - Chem with Appleby
... SECTION 4: Homogenous vs. Heterogeneous-15 • Homogeneous equilibria: ________________________________ ________________________________ ________________________________ ________________________________ • Heterogeneous equilibria: ________________________________ ________________________________ _____ ...
... SECTION 4: Homogenous vs. Heterogeneous-15 • Homogeneous equilibria: ________________________________ ________________________________ ________________________________ ________________________________ • Heterogeneous equilibria: ________________________________ ________________________________ _____ ...
Calculations Booklet
... Enthalpy of solution of a substance is the energy change when one mole of that substance dissolves in excess water. Enthalpy of solution may be exothermic or endothermic. Worked Example (Note: the method is not always identical) 4g of ammonium nitrate, NH4NO3, is dissolved completely in 100cm3 water ...
... Enthalpy of solution of a substance is the energy change when one mole of that substance dissolves in excess water. Enthalpy of solution may be exothermic or endothermic. Worked Example (Note: the method is not always identical) 4g of ammonium nitrate, NH4NO3, is dissolved completely in 100cm3 water ...
Lab Manual - Center for Nonlinear Science
... significance and meaning of their results, and explain any unexpected observations which may have been made. For several experiments the laboratory manual sets a number of questions which should be answered as part of the discussion in the report. This is the most creative part of the report, and pr ...
... significance and meaning of their results, and explain any unexpected observations which may have been made. For several experiments the laboratory manual sets a number of questions which should be answered as part of the discussion in the report. This is the most creative part of the report, and pr ...
Ksp - ChemConnections
... Provide complete net ionic equations (NIEs) for each of the eight silver metal ion reactions in the video (i.e. for each addition) and the respective Ksp or Kf value that relates to that particular NIE. http://chemconnections.org/general/movies/Precip-Equil-I.mov ...
... Provide complete net ionic equations (NIEs) for each of the eight silver metal ion reactions in the video (i.e. for each addition) and the respective Ksp or Kf value that relates to that particular NIE. http://chemconnections.org/general/movies/Precip-Equil-I.mov ...
DEPARTMENT OF CHEMISTRY AND CHEMICAL TECHNOLOGY
... Which of the following expressions relates K1 to K2? (Circle your choice). 1. K2 = K12 2. K22 = K1 3. K2 = K1 4. K2 = 1/K1 5. K2 = 1/K12 (b) The reaction quotient for a reaction has a value of 75 while the equilibrium constant has a value of 195. Which of the following statements is accurate? 1. The ...
... Which of the following expressions relates K1 to K2? (Circle your choice). 1. K2 = K12 2. K22 = K1 3. K2 = K1 4. K2 = 1/K1 5. K2 = 1/K12 (b) The reaction quotient for a reaction has a value of 75 while the equilibrium constant has a value of 195. Which of the following statements is accurate? 1. The ...
apch04 test review_ans
... 2 CH3COOH (aq) + Zn(OH)2 (aq) 2 H2O (l) + Zn(C2H3O2)2 (aq) Mg(OH)2 (s) + 2 (NH4)Cl (aq) MgCl2 (aq) + 2 NH4OH** MgCl2 (aq) + 2 NH3 (g) + 2 H2O (l) **NH4OH is one of the 3 gas forming products ...
... 2 CH3COOH (aq) + Zn(OH)2 (aq) 2 H2O (l) + Zn(C2H3O2)2 (aq) Mg(OH)2 (s) + 2 (NH4)Cl (aq) MgCl2 (aq) + 2 NH4OH** MgCl2 (aq) + 2 NH3 (g) + 2 H2O (l) **NH4OH is one of the 3 gas forming products ...
Answers to Selected Questions and Problems
... going up a hill is converting chemical energy in the fuel to mechanical energy to reach the top. At the top of the hill, the car has potential energy. If it rolls down the hill, it gains kinetic energy but loses potential energy. Other energy conversions can be found while driving a car. When the ba ...
... going up a hill is converting chemical energy in the fuel to mechanical energy to reach the top. At the top of the hill, the car has potential energy. If it rolls down the hill, it gains kinetic energy but loses potential energy. Other energy conversions can be found while driving a car. When the ba ...
Chem 171-2-3: Final Exam Review Multiple Choice Problems 1
... Consider a Galvanic cell represented by the following line notation: Zn(s) | Zn2+ (aq) || Cu2+ (aq) | Cu (s). Which statement about this cell is not true? a. The mass of the zinc electrode will increase as the cell discharges. b. The copper electrode is the cathode. c. Electrons will flow through th ...
... Consider a Galvanic cell represented by the following line notation: Zn(s) | Zn2+ (aq) || Cu2+ (aq) | Cu (s). Which statement about this cell is not true? a. The mass of the zinc electrode will increase as the cell discharges. b. The copper electrode is the cathode. c. Electrons will flow through th ...
Stoichiometry Notes
... on mole concept) involving common oxidationreduction, neutralization, and displacement reactions; Concentration in terms of mole fraction, molarity, molality and normality. ...
... on mole concept) involving common oxidationreduction, neutralization, and displacement reactions; Concentration in terms of mole fraction, molarity, molality and normality. ...
СУМСЬКИЙ ДЕРЖАВНИЙ УНІВЕРСИТЕТ
... The acid residues of oxoacids are called oxoanions. Certain non-metals (e.g., Cl, N, P, and S) form a series of oxoanions containing different numbers of oxygen atoms. Their names are related to the oxidation state (the valency) of the nonmetal atom to which the O atoms are bonded, according to the ...
... The acid residues of oxoacids are called oxoanions. Certain non-metals (e.g., Cl, N, P, and S) form a series of oxoanions containing different numbers of oxygen atoms. Their names are related to the oxidation state (the valency) of the nonmetal atom to which the O atoms are bonded, according to the ...
Chapter 19, part II Notes
... Chapter 19, part II Notes Equilibrium Reactions LeChatelier’s Principle Equilibrium Constants ...
... Chapter 19, part II Notes Equilibrium Reactions LeChatelier’s Principle Equilibrium Constants ...
Summary - Clydebank High School
... As the concentration of a reactant increases the number of collisions between reactant particles ............................................ . 4. Reaction rate increases as the particle size of solid reactants ......................................... The smaller the particle size the ............. ...
... As the concentration of a reactant increases the number of collisions between reactant particles ............................................ . 4. Reaction rate increases as the particle size of solid reactants ......................................... The smaller the particle size the ............. ...
BIOL 421L/521L – Biochemistry laboratory
... provided on the chemical carts (Pasteur pipettes, rubber bulbs, masking tape and small test tubes). It is the responsibility of the instructor to attach the apparatus to the chemical container prior to the start of lab and remove it at the end of lab. No dropper tube apparatus is allowed on bottles ...
... provided on the chemical carts (Pasteur pipettes, rubber bulbs, masking tape and small test tubes). It is the responsibility of the instructor to attach the apparatus to the chemical container prior to the start of lab and remove it at the end of lab. No dropper tube apparatus is allowed on bottles ...
Unit - 7.pmd
... Ammonia is a colourless gas with a pungent odour. Its freezing and boiling points are 198.4 and 239.7 K respectively. In the solid and liquid states, it is associated through hydrogen bonds as in the case of water and that accounts for its higher melting and boiling points than expected on the basis ...
... Ammonia is a colourless gas with a pungent odour. Its freezing and boiling points are 198.4 and 239.7 K respectively. In the solid and liquid states, it is associated through hydrogen bonds as in the case of water and that accounts for its higher melting and boiling points than expected on the basis ...
The solubility of Ca(OH) in extremely concentrated NaOH solutions
... The solubility data obtained for pure NaOH solutions is shown in Fig. 2. and in Table 1. The equilibrium concentration of Ca2+ steadily decreases with an increasing concentration of NaOH This indicates a lack of formation of higher, soluble, stepwise Ca(OH)n2–n hydroxo complexes (n > 2) even at the ...
... The solubility data obtained for pure NaOH solutions is shown in Fig. 2. and in Table 1. The equilibrium concentration of Ca2+ steadily decreases with an increasing concentration of NaOH This indicates a lack of formation of higher, soluble, stepwise Ca(OH)n2–n hydroxo complexes (n > 2) even at the ...
General Chemistry - Bioinorganic and Solution Chemistry Group
... lecture. It is recommended to study these paragraphs before doing the corresponding experiment and to complete by information found in books. Laboratory work that is only aimed at following procedures without asking for the chemical background is useless. In all quantitative experiments the weights, ...
... lecture. It is recommended to study these paragraphs before doing the corresponding experiment and to complete by information found in books. Laboratory work that is only aimed at following procedures without asking for the chemical background is useless. In all quantitative experiments the weights, ...
Praktikum in Allgemeiner Chemie für Biologen und Pharmazeuten
... soot producing flame is obtained. It has the lowest temperature but should not be used for gentle heating since it would spoil the equipment with soot. This air supply position, however, is most suitable for the ignition. When the air supply is opened slightly the yellow emission disappears and the ...
... soot producing flame is obtained. It has the lowest temperature but should not be used for gentle heating since it would spoil the equipment with soot. This air supply position, however, is most suitable for the ignition. When the air supply is opened slightly the yellow emission disappears and the ...
OCR answers to the examination questions File
... (b) (i) Add Tollens’ reagent. Heat reaction in a water bath. But-2-enal gives a silver precipitate or silver mirror. (ii) Aldehydes can be oxidised but ketones cannot. (c) (i) CH3CH=CHCH2OH (ii) Redox reaction/reduction or addition. (d) C4H6O + 5O2 → 4CO2 + 3H2O 7 (a) (i) ...
... (b) (i) Add Tollens’ reagent. Heat reaction in a water bath. But-2-enal gives a silver precipitate or silver mirror. (ii) Aldehydes can be oxidised but ketones cannot. (c) (i) CH3CH=CHCH2OH (ii) Redox reaction/reduction or addition. (d) C4H6O + 5O2 → 4CO2 + 3H2O 7 (a) (i) ...