File - Grade 12 Chemistry
... Other answers are possible for the alcohol and the ether. PTS: 1 9. ANS: Dispersion forces are very weak intermolecular forces that exist between molecules. When a carbon atom is bonded to another carbon atom, or to a hydrogen atom, the bond is not considered to be polar because the electronegativit ...
... Other answers are possible for the alcohol and the ether. PTS: 1 9. ANS: Dispersion forces are very weak intermolecular forces that exist between molecules. When a carbon atom is bonded to another carbon atom, or to a hydrogen atom, the bond is not considered to be polar because the electronegativit ...
CHEMSTRY FREE-RESPONSE QUESTIONS (Form B)
... (d) Let the variables g, M, and V be defined as follows: g = the mass, in grams, of the sample of the iron(II) compound M= the molarity of the MnO4-(aq)) used as the titrant V = the volume, in liters, of MnO4-(aq)) added to reach the end point In terms of these variables, the number of moles of MnO4 ...
... (d) Let the variables g, M, and V be defined as follows: g = the mass, in grams, of the sample of the iron(II) compound M= the molarity of the MnO4-(aq)) used as the titrant V = the volume, in liters, of MnO4-(aq)) added to reach the end point In terms of these variables, the number of moles of MnO4 ...
mass-mass problems.
... reaction (substance A) and asked to calculate the mass of a different substance in the reaction (substance B). This will be a 3-step dimensional analysis conversion. 1. Convert grams of A to moles of A using the molar mass of A. 2. Convert moles of A to moles of B using the coefficients from the bal ...
... reaction (substance A) and asked to calculate the mass of a different substance in the reaction (substance B). This will be a 3-step dimensional analysis conversion. 1. Convert grams of A to moles of A using the molar mass of A. 2. Convert moles of A to moles of B using the coefficients from the bal ...
Document
... 5. Halogens: The oxidation number of fluorine is -1. Each of the other halogens (Cl, Br, I) has an oxidation number of -1 in binary compounds, except when the other element is another halogen above it in the periodic table or the other element is oxygen. 6. Compounds and ions: The sum of the oxidat ...
... 5. Halogens: The oxidation number of fluorine is -1. Each of the other halogens (Cl, Br, I) has an oxidation number of -1 in binary compounds, except when the other element is another halogen above it in the periodic table or the other element is oxygen. 6. Compounds and ions: The sum of the oxidat ...
Equilibrium 5
... 5. At a certain temperature, a 1.00-L flask initially contained 0.298 moles of PCl3 (g) and 8.7 x 10-3 moles of PCl5 (g). After the system had reached equilibrium, 2.00 x 10-3 moles of Cl2 (g) was found in the flask. Gaseous PCl5 decomposes according to the reaction: PCl5 (g) ...
... 5. At a certain temperature, a 1.00-L flask initially contained 0.298 moles of PCl3 (g) and 8.7 x 10-3 moles of PCl5 (g). After the system had reached equilibrium, 2.00 x 10-3 moles of Cl2 (g) was found in the flask. Gaseous PCl5 decomposes according to the reaction: PCl5 (g) ...
File
... solution is added drop by drop to a warm solution Select the one lettered choice that best fits each of sodium hydroxide. statement and then blacken the corresponding space on 13. No precipitate is formed when a dilute solution of the answer sheet. A choice may be used once, more H2SO4 is added to a ...
... solution is added drop by drop to a warm solution Select the one lettered choice that best fits each of sodium hydroxide. statement and then blacken the corresponding space on 13. No precipitate is formed when a dilute solution of the answer sheet. A choice may be used once, more H2SO4 is added to a ...
Chapter 9 – Reaction Energetics
... long the reaction takes or how it occurs. These latter concerns are the domain of kinetics. In this chapter, we examine the energetics of some reactions to better understand how reactions occur, to learn how to predict the feasibility of a reaction, and to determine the effect of temperature on both ...
... long the reaction takes or how it occurs. These latter concerns are the domain of kinetics. In this chapter, we examine the energetics of some reactions to better understand how reactions occur, to learn how to predict the feasibility of a reaction, and to determine the effect of temperature on both ...
Chapter 9
... a.How many moles of K2PtCl4 must react in order to produce 30.0 g of PtCl2(NH3)2? b.How many moles of NH3 are needed to produce 30.0 g of PtCl2(NH3)2? ...
... a.How many moles of K2PtCl4 must react in order to produce 30.0 g of PtCl2(NH3)2? b.How many moles of NH3 are needed to produce 30.0 g of PtCl2(NH3)2? ...
Equilibrium Chemistry
... Equilibrium Chemistry Equilibrium may be defined as the state of a chemical or physical system where no further measurable change occurs. It is important to note that, while it may appear that the reaction has stopped, the forward and reverse reactions are simply proceeding at the same rate. Equilib ...
... Equilibrium Chemistry Equilibrium may be defined as the state of a chemical or physical system where no further measurable change occurs. It is important to note that, while it may appear that the reaction has stopped, the forward and reverse reactions are simply proceeding at the same rate. Equilib ...
Application of the Purdue Ontology for Pharmaceutical Engineering
... There had been some work done to describe materials in an explicit manner including the Standard for the Exchange of Product Data STEP (ISO 10303) and OntoCAPE, which included descriptions of phases, chemical components and reactions (Yang and Marquardt, 2004). However, in the data models above, exp ...
... There had been some work done to describe materials in an explicit manner including the Standard for the Exchange of Product Data STEP (ISO 10303) and OntoCAPE, which included descriptions of phases, chemical components and reactions (Yang and Marquardt, 2004). However, in the data models above, exp ...
2013 us national chemistry olympiad
... a. Calcium sulfite is heated to a high temperature in a vacuum. b. Solutions of sodium oxalate and acidified solution potassium permanganate are mixed. c. Solutions of magnesium sulfate and barium hydroxide are mixed. d. Gaseous dimethylamine and hydrogen chloride are mixed. e. Toluene is reacted wi ...
... a. Calcium sulfite is heated to a high temperature in a vacuum. b. Solutions of sodium oxalate and acidified solution potassium permanganate are mixed. c. Solutions of magnesium sulfate and barium hydroxide are mixed. d. Gaseous dimethylamine and hydrogen chloride are mixed. e. Toluene is reacted wi ...
Unit 4 - Calculations and Chemical Reactions
... We often indicate the physical state of reactants and products using the following symbols: (s) for solid sate; (l) for liquid state; (g) for gaseous sate. If a substance is dissolved in water, it is an aqueous (aq) solution. States may or may not be given in chemical equations. MgO(s) + CO2(g) → Mg ...
... We often indicate the physical state of reactants and products using the following symbols: (s) for solid sate; (l) for liquid state; (g) for gaseous sate. If a substance is dissolved in water, it is an aqueous (aq) solution. States may or may not be given in chemical equations. MgO(s) + CO2(g) → Mg ...