C:\My Documents\My Documents\Teaching\chem130\hunt
... A hydrate of ferrous sulfate has the formula FeSO4@xH2O. To determine a value of x, a student dissolves a 4.2852 g hydrate sample in water, followed by reduction of Fe2+ ions to Fe(s) using magnesium turnings. The precipitated Fe(s) is then washed, filtered and dried until a constant mass of 0.8607 ...
... A hydrate of ferrous sulfate has the formula FeSO4@xH2O. To determine a value of x, a student dissolves a 4.2852 g hydrate sample in water, followed by reduction of Fe2+ ions to Fe(s) using magnesium turnings. The precipitated Fe(s) is then washed, filtered and dried until a constant mass of 0.8607 ...
Worksheet: Acid base problems - AP level
... Example #10: If 0.50 moles Ca(OH)2 is slurried in 0.50 L deionized water and treated with 0.50 moles of CO2 gas in a closed system, the liquid phase of this system will have a pH closest to what value? Solution: After the Ca(OH)2 and the CO2 react, we are left with some calcium carbonate, an insolub ...
... Example #10: If 0.50 moles Ca(OH)2 is slurried in 0.50 L deionized water and treated with 0.50 moles of CO2 gas in a closed system, the liquid phase of this system will have a pH closest to what value? Solution: After the Ca(OH)2 and the CO2 react, we are left with some calcium carbonate, an insolub ...
CHEMISTRY I Final..#1..rev 4KEY
... Objective 1.02: Evaluate reports of scientific investigations from an informed scientifically-literate viewpoint. Objective 1.03: Evaluate experimental designs with regard to safety. ...
... Objective 1.02: Evaluate reports of scientific investigations from an informed scientifically-literate viewpoint. Objective 1.03: Evaluate experimental designs with regard to safety. ...
Kinetic study of the oxidation of malonic acid by
... the seventieth years [9] and for this reason, great attention is given to the study of its partial reaction steps, too. Such a step is also the oxidation of malonic acid by the Mn(III) ions which is the topic of this study. The first reaction order with respect to concentration of the Mn(III) ions i ...
... the seventieth years [9] and for this reason, great attention is given to the study of its partial reaction steps, too. Such a step is also the oxidation of malonic acid by the Mn(III) ions which is the topic of this study. The first reaction order with respect to concentration of the Mn(III) ions i ...
SOLUBILITY RULES FOR IONIC COMPOUNDS IN WATER
... 76. The United States produces more than 7 billion kilograms of vinyl chloride annually. Most is converted into polymer polyvinyl chloride (PVC), which is used to make piping, siding, gutters, floor tiles, clothing, and toys. Vinyl chloride is made from a two-step process, in which a chlorine atom ...
... 76. The United States produces more than 7 billion kilograms of vinyl chloride annually. Most is converted into polymer polyvinyl chloride (PVC), which is used to make piping, siding, gutters, floor tiles, clothing, and toys. Vinyl chloride is made from a two-step process, in which a chlorine atom ...
Chemistry - Edexcel
... Reaction with cold water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................................................................................ ............................................................ . . . . . . . . . . . . . . . . . . . . ...
... Reaction with cold water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................................................................................ ............................................................ . . . . . . . . . . . . . . . . . . . . ...
Part One: Ions in Aqueous Solution A. Electrolytes and Non
... Net ionic equation = complete ionic equation after “spectator ions” have been canceled out. 2H+(aq) + Mg(OH)2(s) → Mg+ (aq) + 2H2O [This is the essence of the reaction.] ...
... Net ionic equation = complete ionic equation after “spectator ions” have been canceled out. 2H+(aq) + Mg(OH)2(s) → Mg+ (aq) + 2H2O [This is the essence of the reaction.] ...
AP CHEMISTRY - An Incomplete List of Topics
... Apply le Chatelier's principle – particularly it’s impact on K or the conc of a molecule after an add/loss of another molecule or a temp change. Be able to use H in le Chatelier's principle and K. Solve I.C.E. problems. Also know how to do ICE if your given amounts for two molecules and not just on ...
... Apply le Chatelier's principle – particularly it’s impact on K or the conc of a molecule after an add/loss of another molecule or a temp change. Be able to use H in le Chatelier's principle and K. Solve I.C.E. problems. Also know how to do ICE if your given amounts for two molecules and not just on ...
Chem163_Electrochem
... spontaneous, and that the reaction would produce an electric current when set up as a galvanic cell. When conditions are not at standard conditions, the Nernst equation can be used as a correction. In the Nernst equation R is the universal gas constant with a value of 8.3145 J/Kmol, T is the temper ...
... spontaneous, and that the reaction would produce an electric current when set up as a galvanic cell. When conditions are not at standard conditions, the Nernst equation can be used as a correction. In the Nernst equation R is the universal gas constant with a value of 8.3145 J/Kmol, T is the temper ...
1985 Free Response Answers
... (a) Describe the general trend in acid-base character of the oxides of the elements in the third period (Na to Ar). Give examples of one acidic oxide and one basic oxide and show with equations how these oxides react with water. (b) How does the oxidizing strength of the halogen elements vary down ...
... (a) Describe the general trend in acid-base character of the oxides of the elements in the third period (Na to Ar). Give examples of one acidic oxide and one basic oxide and show with equations how these oxides react with water. (b) How does the oxidizing strength of the halogen elements vary down ...
Questions 1-2
... (B) The hydrogen bonding increases. (C) The dipole-dipole forces increase. (D) The chemical reactivity increases. ...
... (B) The hydrogen bonding increases. (C) The dipole-dipole forces increase. (D) The chemical reactivity increases. ...
TECHNICAL REPORT Modeling of faradaic reactions in
... The simulations of the electrochemical cell under a current load was carried out, Fig. 2. We constructed currentvoltage (CV) characteristics of the entire electrochemical cell, Fig. 2a, and a half-cell, Fig. 2b. The symbol ∆φtot in Fig. 2a represents the total potential difference imposed on the ele ...
... The simulations of the electrochemical cell under a current load was carried out, Fig. 2. We constructed currentvoltage (CV) characteristics of the entire electrochemical cell, Fig. 2a, and a half-cell, Fig. 2b. The symbol ∆φtot in Fig. 2a represents the total potential difference imposed on the ele ...
Elements, Compounds, and Molecules
... What is the difference between a compound and a molecule? A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds. ...
... What is the difference between a compound and a molecule? A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds. ...
Exam #1
... This planet is identical to Earth in size and chemical composition. You find a chemistry textbook (always the first thing you should look for when away from home) and learn that on that planet the mass of as 12C6 atom is defined as 12 amu but the formal definition of a mole is the "quantity of any s ...
... This planet is identical to Earth in size and chemical composition. You find a chemistry textbook (always the first thing you should look for when away from home) and learn that on that planet the mass of as 12C6 atom is defined as 12 amu but the formal definition of a mole is the "quantity of any s ...
Solubility
... 3) A solution is described as saturated when no more solute will dissolve in it. The saturation point is reached when ______ g of NaCl are dissolved in 100 mL of water. ...
... 3) A solution is described as saturated when no more solute will dissolve in it. The saturation point is reached when ______ g of NaCl are dissolved in 100 mL of water. ...
國立嘉義大學95學年度
... 2NO(g) + Br (g) . After equilibrium was reached, the volume was increased to 2.0 liters, while the temperature was 44. 2NOBr(g) ...
... 2NO(g) + Br (g) . After equilibrium was reached, the volume was increased to 2.0 liters, while the temperature was 44. 2NOBr(g) ...
PH
In chemistry, pH (/piːˈeɪtʃ/) is a numeric scale used to specify the acidity or alkalinity of an aqueous solution. It is the negative of the logarithm to base 10 of the activity of the hydrogen ion. Solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are alkaline or basic. Pure water is neutral, being neither an acid nor a base. Contrary to popular belief, the pH value can be less than 0 or greater than 14 for very strong acids and bases respectively.pH measurements are important in medicine, biology, chemistry, agriculture, forestry, food science, environmental science, oceanography, civil engineering, chemical engineering, nutrition, water treatment & water purification, and many other applications. The pH scale is traceable to a set of standard solutions whose pH is established by international agreement.Primary pH standard values are determined using a concentration cell with transference, by measuring the potential difference between a hydrogen electrode and a standard electrode such as the silver chloride electrode.The pH of aqueous solutions can be measured with a glass electrode and a pH meter, or indicator.pH is the negative of the logarithm to base 10 of the activity of the (solvated) hydronium ion, more often (albeit somewhat inaccurately) expressed as the measure of the hydronium ion concentration.The rest of this article uses the technically correct word ""base"" and its inflections in place of ""alkaline"", which specifically refers to a base dissolved in water, and its inflections.