SCH3U: Final Exam Review Note: These questions a
... 24. Iron reacts with antimony trisulphide in a single replacement reaction. Antimony and iron (II) sulphide are produced. Calculate the mass of iron that is needed to react with 15.6 g of antimony trisulphide. 25. The theoretical yield of a reaction is 62.9 g, but the actual yield is 47.8 g. Calcula ...
... 24. Iron reacts with antimony trisulphide in a single replacement reaction. Antimony and iron (II) sulphide are produced. Calculate the mass of iron that is needed to react with 15.6 g of antimony trisulphide. 25. The theoretical yield of a reaction is 62.9 g, but the actual yield is 47.8 g. Calcula ...
View/Open
... Both the initial addition step and the subsequent elimination step can affect the overall rate of a nucleophilic acyl substitution reaction, but the addition step is generally the rate-limiting one. Thus, any factor that makes the carbonyl group more reactive toward nucleophiles favors the substitut ...
... Both the initial addition step and the subsequent elimination step can affect the overall rate of a nucleophilic acyl substitution reaction, but the addition step is generally the rate-limiting one. Thus, any factor that makes the carbonyl group more reactive toward nucleophiles favors the substitut ...
Table of Contents - slccscience`s Home Page
... and its compounds. Organic chemistry is the study of carbon and its compounds. Since there are 117 known elements, it often seems odd that an entire branch of chemistry is devoted to a single element and its compounds while the other 116 elements and their compounds are all lumped together in a sepa ...
... and its compounds. Organic chemistry is the study of carbon and its compounds. Since there are 117 known elements, it often seems odd that an entire branch of chemistry is devoted to a single element and its compounds while the other 116 elements and their compounds are all lumped together in a sepa ...
Basic Concepts - Department of Chemistry
... 2. If reactant side has more moles of gas a. Increase in denominator is greater than increase in numerator and Qc < Kc b. To return to equilibrium, Qc must increase; the numerator of the Qc expression must increase and denominator must decrease—it shifts toward fewer moles of gas (reactants to produ ...
... 2. If reactant side has more moles of gas a. Increase in denominator is greater than increase in numerator and Qc < Kc b. To return to equilibrium, Qc must increase; the numerator of the Qc expression must increase and denominator must decrease—it shifts toward fewer moles of gas (reactants to produ ...
equilibrium - eVirtualGuru
... When a liquid evaporates in a closed container, molecules with relatively higher kinetic energy escape the liquid surface into the vapour phase and number of liquid molecules from the vapour phase strike the liquid surface and are retained in the liquid phase. It gives rise to a constant vapour pres ...
... When a liquid evaporates in a closed container, molecules with relatively higher kinetic energy escape the liquid surface into the vapour phase and number of liquid molecules from the vapour phase strike the liquid surface and are retained in the liquid phase. It gives rise to a constant vapour pres ...
Basic Concepts
... 2. If reactant side has more moles of gas a. Increase in denominator is greater than increase in numerator and Qc < Kc b. To return to equilibrium, Qc must increase; the numerator of the Qc expression must increase and denominator must decrease—it shifts toward fewer moles of gas (reactants to produ ...
... 2. If reactant side has more moles of gas a. Increase in denominator is greater than increase in numerator and Qc < Kc b. To return to equilibrium, Qc must increase; the numerator of the Qc expression must increase and denominator must decrease—it shifts toward fewer moles of gas (reactants to produ ...
CHAPTER 16 ACID-BASE EQUILIBRIA AND SOLUBILITY
... Could you have predicted whether the pH should have increased or decreased after the addition of the sodium acetate to the pure 0.40 M acetic acid in part (a)? An alternate way to work part (b) of this problem is to use the Henderson-Hasselbalch equation. pH = pKa + log ...
... Could you have predicted whether the pH should have increased or decreased after the addition of the sodium acetate to the pure 0.40 M acetic acid in part (a)? An alternate way to work part (b) of this problem is to use the Henderson-Hasselbalch equation. pH = pKa + log ...
mod-5-revision-guide-4-transition-metals
... Catalysed alternative route Step 1 4Mn2+ + MnO4- + 8 H+ 5Mn3+ + 4 H2O Step 2 2Mn3+ + C2O42- 2Mn2+ + 2 CO2 The initial uncatalysed reaction is slow because the reaction is a collision between two negative ions which repel each other leading to a high activation energy. The Mn2+ ions produced act ...
... Catalysed alternative route Step 1 4Mn2+ + MnO4- + 8 H+ 5Mn3+ + 4 H2O Step 2 2Mn3+ + C2O42- 2Mn2+ + 2 CO2 The initial uncatalysed reaction is slow because the reaction is a collision between two negative ions which repel each other leading to a high activation energy. The Mn2+ ions produced act ...
CHAPTER 12 | The Chemistry of Solids
... It is tricky to see that the Mg atoms here are shared between 12 unit cells. Consider the center atom in the figure on the right hand side. That atom is shared with 6 unit cells as shown, but there are also 6 more unit cells stacked on top of it that are not shown in the diagram. 12.19. Collect and ...
... It is tricky to see that the Mg atoms here are shared between 12 unit cells. Consider the center atom in the figure on the right hand side. That atom is shared with 6 unit cells as shown, but there are also 6 more unit cells stacked on top of it that are not shown in the diagram. 12.19. Collect and ...
Stoichiometry: Calculations with Chemical Formulas and Equations
... 4. The lowest number of moles becomes the divisor for the others. (gives a mole ratio greater than 1) 5. Adjust mole ratios so all numbers are whole (1, 2, etc) 6. The lowest whole-number ratio of moles is the ...
... 4. The lowest number of moles becomes the divisor for the others. (gives a mole ratio greater than 1) 5. Adjust mole ratios so all numbers are whole (1, 2, etc) 6. The lowest whole-number ratio of moles is the ...
Announcements - University of Illinois Urbana
... • G(T) = R(T) intersection, equal rate of heat generation & removal, no change in T • G(T) > R(T) (G(T) line above R(T) on graph): rate of heat generation > heat removal, so reactor heats up until a steady state is reached • R(T) > G(T) (R(T) line above G(T) on graph): rate of heat generation < heat ...
... • G(T) = R(T) intersection, equal rate of heat generation & removal, no change in T • G(T) > R(T) (G(T) line above R(T) on graph): rate of heat generation > heat removal, so reactor heats up until a steady state is reached • R(T) > G(T) (R(T) line above G(T) on graph): rate of heat generation < heat ...
Chemistry II - Mr. Dougan`s Wonderful World of Chemistry
... Hydrochloric acid is characterized as a strong acid, which means it exists in aqueous solution as H+ and Cl- rather than in the molecular from of HCl. Similarly, sodium hydroxide is classified as a strong base, which means it exists in aqueous solution as Na + and OH- ions rather than in the molecul ...
... Hydrochloric acid is characterized as a strong acid, which means it exists in aqueous solution as H+ and Cl- rather than in the molecular from of HCl. Similarly, sodium hydroxide is classified as a strong base, which means it exists in aqueous solution as Na + and OH- ions rather than in the molecul ...
Empirical and Molecular Formulas
... Step 2: Determine simplest ratio by dividing the lowest amount of moles determined in step 1 3.390/3.390 = 1 mol of C 5.04/3.390 = 1.5 mol of H 3.390/3.390 = 1 mol of O Then look at the three numbers of moles and determine the lowest number they can be multiplied by to get all whole numbers. In this ...
... Step 2: Determine simplest ratio by dividing the lowest amount of moles determined in step 1 3.390/3.390 = 1 mol of C 5.04/3.390 = 1.5 mol of H 3.390/3.390 = 1 mol of O Then look at the three numbers of moles and determine the lowest number they can be multiplied by to get all whole numbers. In this ...
Chapter 6 Quantities in Chemical Reactions
... credit the author (but see below), don't make money from it, and do make it available to everyone else under the same terms. This content was accessible as of December 29, 2012, and it was downloaded then by Andy Schmitz (http://lardbucket.org) in an effort to preserve the availability of this book. ...
... credit the author (but see below), don't make money from it, and do make it available to everyone else under the same terms. This content was accessible as of December 29, 2012, and it was downloaded then by Andy Schmitz (http://lardbucket.org) in an effort to preserve the availability of this book. ...
chem textbook 2015 - Manitowoc Public School District
... At times it may be beneficial to work with other members of your class or prior chemistry students as they may present material in a different manner than I that could resonate with you and enhance your learning. However I do caution that this relationship can quickly degrade to a scenario in which ...
... At times it may be beneficial to work with other members of your class or prior chemistry students as they may present material in a different manner than I that could resonate with you and enhance your learning. However I do caution that this relationship can quickly degrade to a scenario in which ...
PART 6-ICHO-26-30
... The overall catalytic reaction is simple, whereas the reaction mechanism in the homogeneous phase is very complicated with a large number of reaction steps, and the course is difficult to control owing to a distinct chain character. With platinum as catalyst the significant reaction steps are: (i) A ...
... The overall catalytic reaction is simple, whereas the reaction mechanism in the homogeneous phase is very complicated with a large number of reaction steps, and the course is difficult to control owing to a distinct chain character. With platinum as catalyst the significant reaction steps are: (i) A ...
Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
... • The most common weak electrolytes are weak acids and weak bases. • Acetic acid is a typical weak acid: HC2H3O2(aq) ...
... • The most common weak electrolytes are weak acids and weak bases. • Acetic acid is a typical weak acid: HC2H3O2(aq) ...
- Kendriya Vidyalaya Jamuna Colliery
... Two Ag+ ions will be replaced by one Ca2+ ions to maintain electrical neutrality. Thus a hole is created at the lattice site for due to presence of Ca2+ ion as impurity. 7. The electrical conductivity of a metal decreases with rise in temperature while that of a semiconductor increases. Explain. In ...
... Two Ag+ ions will be replaced by one Ca2+ ions to maintain electrical neutrality. Thus a hole is created at the lattice site for due to presence of Ca2+ ion as impurity. 7. The electrical conductivity of a metal decreases with rise in temperature while that of a semiconductor increases. Explain. In ...
File
... An aqueous solution was prepared containing 1.0 mol of AgNO3 and 1.0 mol of FeSO4 in 1.00 dm3 of water. When equilibrium was established, there was 0.44 mol of Ag+(aq) in the mixture. ...
... An aqueous solution was prepared containing 1.0 mol of AgNO3 and 1.0 mol of FeSO4 in 1.00 dm3 of water. When equilibrium was established, there was 0.44 mol of Ag+(aq) in the mixture. ...
organonitrogen compounds i. amines
... There is, though, a major difference in the way that amines and alcohols behave toward oxidizing agents. Amines generally show more complex behavior on oxidation because, as we shall see, nitrogen has a larger number of stable ...
... There is, though, a major difference in the way that amines and alcohols behave toward oxidizing agents. Amines generally show more complex behavior on oxidation because, as we shall see, nitrogen has a larger number of stable ...
Syllabus and Regulations for 2-year, 4
... by the College authority and will be duly notified. Total duration of the course is two years [hereafter, “Course” refers to M. Sc. Course in Chemistry and “Paper” refers to the individual papers of 75/80/85/90/100 marks divided into two halves: Group-A: Theoretical (50-marks) and Group-B: Practical ...
... by the College authority and will be duly notified. Total duration of the course is two years [hereafter, “Course” refers to M. Sc. Course in Chemistry and “Paper” refers to the individual papers of 75/80/85/90/100 marks divided into two halves: Group-A: Theoretical (50-marks) and Group-B: Practical ...
Chapter7.2
... Calculate theoretical yield of CO. 30.0 g O2 x 1 mole O2 x 2 mole CO x 28.0 g CO 32.0 g O2 1 mole O2 1 mole CO ...
... Calculate theoretical yield of CO. 30.0 g O2 x 1 mole O2 x 2 mole CO x 28.0 g CO 32.0 g O2 1 mole O2 1 mole CO ...
Bioorthogonal chemistry
The term bioorthogonal chemistry refers to any chemical reaction that can occur inside of living systems without interfering with native biochemical processes. The term was coined by Carolyn R. Bertozzi in 2003. Since its introduction, the concept of the bioorthogonal reaction has enabled the study of biomolecules such as glycans, proteins, and lipids in real time in living systems without cellular toxicity. A number of chemical ligation strategies have been developed that fulfill the requirements of bioorthogonality, including the 1,3-dipolar cycloaddition between azides and cyclooctynes (also termed copper-free click chemistry), between nitrones and cyclooctynes, oxime/hydrazone formation from aldehydes and ketones, the tetrazine ligation, the isocyanide-based click reaction, and most recently, the quadricyclane ligation.The use of bioorthogonal chemistry typically proceeds in two steps. First, a cellular substrate is modified with a bioorthogonal functional group (chemical reporter) and introduced to the cell; substrates include metabolites, enzyme inhibitors, etc. The chemical reporter must not alter the structure of the substrate dramatically to avoid affecting its bioactivity. Secondly, a probe containing the complementary functional group is introduced to react and label the substrate.Although effective bioorthogonal reactions such as copper-free click chemistry have been developed, development of new reactions continues to generate orthogonal methods for labeling to allow multiple methods of labeling to be used in the same biosystems.