AGE article for Sept 2013
... able to use your rules to write half equations for acidified MnO4– ions being reduced to Mn2+, and acidified Cr2O72– ions being reduced to Cr3+. Either of these may well be relevant when considering the oxidation of an alkanol to an alkanoic acid. The half equations for a hydrogen-oxygen fuel cell a ...
... able to use your rules to write half equations for acidified MnO4– ions being reduced to Mn2+, and acidified Cr2O72– ions being reduced to Cr3+. Either of these may well be relevant when considering the oxidation of an alkanol to an alkanoic acid. The half equations for a hydrogen-oxygen fuel cell a ...
Chemistry to Remember
... via a barometer. A barometer measures the displacement of a column of mercury by air pressure. Standard pressure is 760 mm of mercury or 1 atmosphere (atm), specifically; the air pressure at sea level supports a column of mercury 760 mm high. Today’s technology uses this basic measurement to calibra ...
... via a barometer. A barometer measures the displacement of a column of mercury by air pressure. Standard pressure is 760 mm of mercury or 1 atmosphere (atm), specifically; the air pressure at sea level supports a column of mercury 760 mm high. Today’s technology uses this basic measurement to calibra ...
Past AP FRQ`s Linked to Text Chapters
... - A solution of 1.0-molar HCl - A solution of concentrated HNO3 (a) Which metal can be easily identified because it is much softer than the other two? Describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. Write a balanced chemical equation f ...
... - A solution of 1.0-molar HCl - A solution of concentrated HNO3 (a) Which metal can be easily identified because it is much softer than the other two? Describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. Write a balanced chemical equation f ...
Final Exam Review- no solutions
... b. 2 Ag (s) + H2SO4(aq) Ag2SO4(aq) + H2(g) c. Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g) 11. Titration reveals that 11.6 mL of 3.0 M sulfuric acid are required to neutralize the sodium hydroxide in 25.00 mL of NaOH solution. What is the molarity of the NaOH solution? ...
... b. 2 Ag (s) + H2SO4(aq) Ag2SO4(aq) + H2(g) c. Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g) 11. Titration reveals that 11.6 mL of 3.0 M sulfuric acid are required to neutralize the sodium hydroxide in 25.00 mL of NaOH solution. What is the molarity of the NaOH solution? ...
Click Here To File
... aqueous solution to give H+ions. Therefore HF is a weaker acid than HCl. (b) In solid state, PCl5 consists of ions [PCl4]+[PCl6]−. On melting these ions become free to move and hence conducts electricity in the molten state. (c) In SF6, S is sterically protected by six F atoms and hence does not all ...
... aqueous solution to give H+ions. Therefore HF is a weaker acid than HCl. (b) In solid state, PCl5 consists of ions [PCl4]+[PCl6]−. On melting these ions become free to move and hence conducts electricity in the molten state. (c) In SF6, S is sterically protected by six F atoms and hence does not all ...
Homework Assignment #4
... 6. (4 pts) Indicate whether each sample of matter listed is a mixture or pure, if mixture, then indicate whether the mixture is homogeneous or heterogeneous: a) A cube of sugar is a _________________________________________ . b) Premium gasoline is a ________________________________________ . c) Tap ...
... 6. (4 pts) Indicate whether each sample of matter listed is a mixture or pure, if mixture, then indicate whether the mixture is homogeneous or heterogeneous: a) A cube of sugar is a _________________________________________ . b) Premium gasoline is a ________________________________________ . c) Tap ...
AP Chem Summer Assign Gen Chem Rev Problems
... b. Due to heat loss to the surroundings, the amount you calculated is lower than it should have been. Suppose under perfect conditions the heat transferred should have been 943 cal. Calculate the Percent Error of the experiment in (a). c. How many joules of energy are required to melt a 17 gram ice ...
... b. Due to heat loss to the surroundings, the amount you calculated is lower than it should have been. Suppose under perfect conditions the heat transferred should have been 943 cal. Calculate the Percent Error of the experiment in (a). c. How many joules of energy are required to melt a 17 gram ice ...
Belarus, National Final, 2008 (PDF 405K).
... Compound X is excreted in urine. The amount of X present in the body is proportional to the mass of muscle tissue. a) Draw structural formulas for compounds A through X and for each of the following amino acids: Gly (glycine), Orn (ornithine or 2,5-diaminopentanoic acid), and SAM (S-adenosyl methion ...
... Compound X is excreted in urine. The amount of X present in the body is proportional to the mass of muscle tissue. a) Draw structural formulas for compounds A through X and for each of the following amino acids: Gly (glycine), Orn (ornithine or 2,5-diaminopentanoic acid), and SAM (S-adenosyl methion ...
Final Review Sheet Answers (the 6 page packet)
... What pressure is exerted by 2.0 moles of a gas in a 500 cm 3 container at 25 oC? P = 98 atm (use the ideal gas law) Two hundred cubic centimeters of a gas are collected by water displacement. The conditions at time are 1.1 atm and 30 oC. The vapor pressure of water at 30 oC is 23.4 mm Hg. What would ...
... What pressure is exerted by 2.0 moles of a gas in a 500 cm 3 container at 25 oC? P = 98 atm (use the ideal gas law) Two hundred cubic centimeters of a gas are collected by water displacement. The conditions at time are 1.1 atm and 30 oC. The vapor pressure of water at 30 oC is 23.4 mm Hg. What would ...
Normality Primer
... In an acid‐base reaction, acids react with bases. If either the acid or base is strong, the reaction will go to completion and be can used in an acid‐base titration. Under the Brønsted‐Lowry theory, acids are defined as proton (H+) donors and bases as proton acceptors. Thus an acid‐base reaction ...
... In an acid‐base reaction, acids react with bases. If either the acid or base is strong, the reaction will go to completion and be can used in an acid‐base titration. Under the Brønsted‐Lowry theory, acids are defined as proton (H+) donors and bases as proton acceptors. Thus an acid‐base reaction ...
List Definition Chemistry - A Level / Secondary Chemistry Tuition
... The equilibrium constant for the above system is given the symbol Kw and is known as the ionic product of water. Kw = [H3O+][OH-] = 1.0 x 10-14 mol2dm-6 (at 25oC) As the auto-ionisation of water is an endothermic process, when temperature is increased, equilibrium shifts to the right to absorb the h ...
... The equilibrium constant for the above system is given the symbol Kw and is known as the ionic product of water. Kw = [H3O+][OH-] = 1.0 x 10-14 mol2dm-6 (at 25oC) As the auto-ionisation of water is an endothermic process, when temperature is increased, equilibrium shifts to the right to absorb the h ...
Document
... Complete the table that shows the reaction, if any, of the oxides with acid and alkali. Indicate a reaction with "R" and no reaction with "NR". ...
... Complete the table that shows the reaction, if any, of the oxides with acid and alkali. Indicate a reaction with "R" and no reaction with "NR". ...
Document
... Only one product General form: element or compound + element or compound compound ...
... Only one product General form: element or compound + element or compound compound ...
Role of Water as a Solvent
... Add 4 OH- to balance charge. Since there hydrogen is absent on the reactant side, add 2 H2O to balance the hydrogen and oxygen. 4 Ag(s) + 8 CN -(aq) + O2 (g) + 2 H2O(l) ...
... Add 4 OH- to balance charge. Since there hydrogen is absent on the reactant side, add 2 H2O to balance the hydrogen and oxygen. 4 Ag(s) + 8 CN -(aq) + O2 (g) + 2 H2O(l) ...
Chapter 14…Kinetic Theory
... Chapters 17& 18…Reaction Rates & Equilibrium Define: 1. Equilibrium: 2. Activated complex: 3. Activation energy: 4. Catalyst: 5. Inhibitor: 7. The reaction rate expression for an irreversible reaction is: Rate = _________________________________ 8. The equilibrium constant expression for a reversibl ...
... Chapters 17& 18…Reaction Rates & Equilibrium Define: 1. Equilibrium: 2. Activated complex: 3. Activation energy: 4. Catalyst: 5. Inhibitor: 7. The reaction rate expression for an irreversible reaction is: Rate = _________________________________ 8. The equilibrium constant expression for a reversibl ...
Monitoring Reactions by TLC The fastest and most commonly used
... The fastest and most commonly used method to follow the course of an organic reaction is by thin layer chromatography (TLC). If performed properly, one can use this simple technique to (1) determine the presence of starting material in the reaction (2) detect and monitor the (qualitative) rate of fo ...
... The fastest and most commonly used method to follow the course of an organic reaction is by thin layer chromatography (TLC). If performed properly, one can use this simple technique to (1) determine the presence of starting material in the reaction (2) detect and monitor the (qualitative) rate of fo ...
2007 local exam - American Chemical Society
... I. electrolysis current deposited by the II. electrolysis time electrolysis of an aqueous III. metal ion charge solution of metal ions increases in direct proportion to which property? ...
... I. electrolysis current deposited by the II. electrolysis time electrolysis of an aqueous III. metal ion charge solution of metal ions increases in direct proportion to which property? ...