Part1. Acid rain formation. 1. Discovery of acid rain.
... Nitric acid is more volatile and thus can exist in significant concentrations in the gas phase, while sulfuric acid has a very low vapor pressure under ambient conditions and hence exists in the form of particles. Nitric acid can relatively easily revolatilize even after forming the ammonium sal ...
... Nitric acid is more volatile and thus can exist in significant concentrations in the gas phase, while sulfuric acid has a very low vapor pressure under ambient conditions and hence exists in the form of particles. Nitric acid can relatively easily revolatilize even after forming the ammonium sal ...
Kinetics - Chemistry Geek
... The experimental rate law for the reaction between NO2 and CO to produce NO and CO2 is rate = k[NO2]2. The reaction is believed to occur via two steps: ...
... The experimental rate law for the reaction between NO2 and CO to produce NO and CO2 is rate = k[NO2]2. The reaction is believed to occur via two steps: ...
1984 Advanced Placement Exam
... (E) Hydrogen peroxide 4. Is a good oxidizing agent 5. Is used to etch glass chemically 6. Is used extensively for the production of fertilizers 7. Has amphoteric properties ...
... (E) Hydrogen peroxide 4. Is a good oxidizing agent 5. Is used to etch glass chemically 6. Is used extensively for the production of fertilizers 7. Has amphoteric properties ...
Supplementary Notes on Volumetric Analysis
... 1 mol of PCl5 is heated in a container of volume 10dm 3 at 1500C. The pressure at equilibrium is 4.32atm. Find the degree of dissociation (= fraction of molecules decomposed) and Kp. (R = 0.082 atm dm3 K-1) PCl5(g) ...
... 1 mol of PCl5 is heated in a container of volume 10dm 3 at 1500C. The pressure at equilibrium is 4.32atm. Find the degree of dissociation (= fraction of molecules decomposed) and Kp. (R = 0.082 atm dm3 K-1) PCl5(g) ...
Questions for Study
... quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius (or one kelvin) at constant pressure (6.6) calorimeter change (6.6) ...
... quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius (or one kelvin) at constant pressure (6.6) calorimeter change (6.6) ...
X -Science Support Material
... ZnO + C →Zn + CO ZnO is reduced to Zn -reduction C is oxidized to CO ------oxidation 6. Effectsof oxidation reactions in our daily life: a)Corrosion: It is an undesirable change that occurs in metals, when they are attacked by moisture, air, acids and bases. Corrosion (rusting) of iron: Fe2O3. xH2O ...
... ZnO + C →Zn + CO ZnO is reduced to Zn -reduction C is oxidized to CO ------oxidation 6. Effectsof oxidation reactions in our daily life: a)Corrosion: It is an undesirable change that occurs in metals, when they are attacked by moisture, air, acids and bases. Corrosion (rusting) of iron: Fe2O3. xH2O ...
Fundamentals of Chemistry
... atom is an extremely small electrically-neutral particle. It is the smallest unit involved in the chemical change of matter. Atoms can be treated as distinct particles because they behave as such chemically, but atoms themselves are composed of even smaller subparts. Understanding these atomic subpa ...
... atom is an extremely small electrically-neutral particle. It is the smallest unit involved in the chemical change of matter. Atoms can be treated as distinct particles because they behave as such chemically, but atoms themselves are composed of even smaller subparts. Understanding these atomic subpa ...
- Kendriya Vidyalaya Damoh
... ZnO + C →Zn + CO ZnO is reduced to Zn -reduction C is oxidized to CO ------oxidation 6. Effectsof oxidation reactions in our daily life: a)Corrosion: It is an undesirable change that occurs in metals, when they are attacked by moisture, air, acids and bases. Corrosion (rusting) of iron: Fe2O3. xH2O ...
... ZnO + C →Zn + CO ZnO is reduced to Zn -reduction C is oxidized to CO ------oxidation 6. Effectsof oxidation reactions in our daily life: a)Corrosion: It is an undesirable change that occurs in metals, when they are attacked by moisture, air, acids and bases. Corrosion (rusting) of iron: Fe2O3. xH2O ...
MULTIPLY CHOICE QUESTIONS ON MEDICAL CHEMISTRY
... 1.21. What will be the standard enthalpy change for the reaction: С(graphite) + 2 Н2(g) = СН4(g)? А. it will decrease at 75 kJ B. it will increase at 75 kJ C. it will decrease at 51 kJ D. it will decrease at 175 kJ E. it will increase at 186 kJ 1.22. The mathematical equation for the first law of th ...
... 1.21. What will be the standard enthalpy change for the reaction: С(graphite) + 2 Н2(g) = СН4(g)? А. it will decrease at 75 kJ B. it will increase at 75 kJ C. it will decrease at 51 kJ D. it will decrease at 175 kJ E. it will increase at 186 kJ 1.22. The mathematical equation for the first law of th ...
Glossary - Chemistry (Intro)
... Notation of E.: Elements of the periodic table are assigned with a mass- and atomic number to quantify its number of protons (Z) and number of protons and neutrons (A); see chemistry atom. Representative E.: Elements in groups 1A through 7A, all of which have incompletely filled s or p subshell of h ...
... Notation of E.: Elements of the periodic table are assigned with a mass- and atomic number to quantify its number of protons (Z) and number of protons and neutrons (A); see chemistry atom. Representative E.: Elements in groups 1A through 7A, all of which have incompletely filled s or p subshell of h ...
File
... Cu(s) + 2 Ag+ Cu2+ + 2 Ag(s) If the equilibrium constant for the reaction above 36. CuO(s) + H2(g) / Cu(s) + H2O(g) _H = –2.0 kilojoules is 3.71015, which of the following correctly When the substances in the equation above are at describes the standard voltage, E_, and the equilibrium at pressur ...
... Cu(s) + 2 Ag+ Cu2+ + 2 Ag(s) If the equilibrium constant for the reaction above 36. CuO(s) + H2(g) / Cu(s) + H2O(g) _H = –2.0 kilojoules is 3.71015, which of the following correctly When the substances in the equation above are at describes the standard voltage, E_, and the equilibrium at pressur ...
UNITS OF CONCENTRATION
... amount of acid that delivers one mole of H+. So for H2SO4, one equivalent is ½ of one mole, since each mole of H2SO4 produces two moles of H+. Consequently, the equivalent weight is half of the molecular weight. Similarly, for bases an equivalent amount of a base is defined as the amount of base tha ...
... amount of acid that delivers one mole of H+. So for H2SO4, one equivalent is ½ of one mole, since each mole of H2SO4 produces two moles of H+. Consequently, the equivalent weight is half of the molecular weight. Similarly, for bases an equivalent amount of a base is defined as the amount of base tha ...
Document
... 29. If 100 g of substance X is mixed with 1 L of water and some, but not all, of X dissolves, the resulting solution is ____. a) unsaturated ...
... 29. If 100 g of substance X is mixed with 1 L of water and some, but not all, of X dissolves, the resulting solution is ____. a) unsaturated ...
Chapter -13 Principles of Metallurgy
... Metals of low reactivity such as silver, mercury, platinum and gold are often found in free state Their reactivity with other atoms is very low. The Oxides of these metals can be reduced to metals by heat alone and sometimes by displacement from their aqueous solution. Eg: i. When cinnabar (Hgs) hea ...
... Metals of low reactivity such as silver, mercury, platinum and gold are often found in free state Their reactivity with other atoms is very low. The Oxides of these metals can be reduced to metals by heat alone and sometimes by displacement from their aqueous solution. Eg: i. When cinnabar (Hgs) hea ...
20.2 Oxidation Numbers
... were assigned to the atom of the more electronegative element. An increase in the oxidation number of an atom or ion indicates oxidation. A decrease in the oxidation number of an atom or ion indicates reduction. ...
... were assigned to the atom of the more electronegative element. An increase in the oxidation number of an atom or ion indicates oxidation. A decrease in the oxidation number of an atom or ion indicates reduction. ...
Chemistry booklet
... The mole concept gives us a means of managing fixed numbers of atoms / ions / molecules in ...
... The mole concept gives us a means of managing fixed numbers of atoms / ions / molecules in ...
Experiment 22
... it is incorporated into Kc. The value of Kc is very small, which means that in any water system the product of [H+] and [OH-] must be very small. In pure water, [H+] equals [OH-] equals 1 10-7 M. Although the product, [H+] [OH-] is small, that does not mean that both concentrations are necessari ...
... it is incorporated into Kc. The value of Kc is very small, which means that in any water system the product of [H+] and [OH-] must be very small. In pure water, [H+] equals [OH-] equals 1 10-7 M. Although the product, [H+] [OH-] is small, that does not mean that both concentrations are necessari ...
Study Guide Chapter 16: The Process of Chemical Reactions
... 5. Explain why energy is released when two oxygen atoms come together to form an O2 molecule. Atoms in a bond are more stable, and therefore, lower potential energy. The Law of Conservation of Energy states that energy cannot be created or destroyed, so energy is released from the system. Energy is ...
... 5. Explain why energy is released when two oxygen atoms come together to form an O2 molecule. Atoms in a bond are more stable, and therefore, lower potential energy. The Law of Conservation of Energy states that energy cannot be created or destroyed, so energy is released from the system. Energy is ...
Electrochemistry
Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte. These reactions involve electric charges moving between the electrodes and the electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.