112 ex i lec outline
... II. Predicting E° (potential) and the direction of a Redox Reaction A redox reaction is the sum of two half-reactions, one for oxidation and the other for reduction Consider the following: ...
... II. Predicting E° (potential) and the direction of a Redox Reaction A redox reaction is the sum of two half-reactions, one for oxidation and the other for reduction Consider the following: ...
PowerPoint Lectures - Northwest ISD Moodle
... • Activity series – list of metals arranged in order of decreasing ease of oxidation - Allows us to predict whether a metal will be oxidized or not • Any neutral metal (or hydrogen) on the list can be oxidized by the ions of elements below it • That is why silver ion oxidized copper metal, but coppe ...
... • Activity series – list of metals arranged in order of decreasing ease of oxidation - Allows us to predict whether a metal will be oxidized or not • Any neutral metal (or hydrogen) on the list can be oxidized by the ions of elements below it • That is why silver ion oxidized copper metal, but coppe ...
File - Varsity Field
... • Formulas for reactants and products must be correct. • Subscripts in formulas of reactants / products cannot be changed to balance an equation, i.e. H2O to H2O2 or CO2 to CO – this would change the identity of the substance. → placing a coefficient in front of formula changes the amount of substan ...
... • Formulas for reactants and products must be correct. • Subscripts in formulas of reactants / products cannot be changed to balance an equation, i.e. H2O to H2O2 or CO2 to CO – this would change the identity of the substance. → placing a coefficient in front of formula changes the amount of substan ...
Chemistry Lab 2010
... What Prevents Collisions From Not Resulting in a Reaction? A chemical reaction does not take place if the • Collisions between molecules do not have sufficient energy to break the bonds in the reactants. • Molecules do not collide with proper orientation. ...
... What Prevents Collisions From Not Resulting in a Reaction? A chemical reaction does not take place if the • Collisions between molecules do not have sufficient energy to break the bonds in the reactants. • Molecules do not collide with proper orientation. ...
Slides for lecture 7 - Aleksey Kocherzhenko
... Ø Exothermic reaction: system transfers heat to the surroundings" Ø Endothermic reaction: system absorbs heat from the surroundings" The first law of thermodynamics requires that if a forward reaction is exothermic, the reverse reaction must be endothermic:" ...
... Ø Exothermic reaction: system transfers heat to the surroundings" Ø Endothermic reaction: system absorbs heat from the surroundings" The first law of thermodynamics requires that if a forward reaction is exothermic, the reverse reaction must be endothermic:" ...
Chemistry Handout 08 - (Redox)
... Questions 20 and 21 refer to the following: Two chemistry students each combine a different metal with hydrochloric acid. Student A uses zinc, and hydrogen gas is readily produced. Student B uses copper, and no hydrogen gas is produced. ...
... Questions 20 and 21 refer to the following: Two chemistry students each combine a different metal with hydrochloric acid. Student A uses zinc, and hydrogen gas is readily produced. Student B uses copper, and no hydrogen gas is produced. ...
Solutions
... Solution: A homogeneous mixture of 2 or more substances in a single physical state. Suspension: Particles are somewhat evenly dispersed, but will settle when at rest. (clay & water) ...
... Solution: A homogeneous mixture of 2 or more substances in a single physical state. Suspension: Particles are somewhat evenly dispersed, but will settle when at rest. (clay & water) ...
Quiz Samples
... Derive formula for molecular mass determination from the 2 equations: PV=nRT and n=g/MM. Calculate the molecular mass of unknown, if P=1.0 atm, V=145 mL, R= 0.082 L*atm*K-1 *mol-1, T=300K, m = 0.50 g MM=(m in g * RT)/PV = 85 g/mol. [Use V in liters] at Given that 0.77g of certain gas occupies volume ...
... Derive formula for molecular mass determination from the 2 equations: PV=nRT and n=g/MM. Calculate the molecular mass of unknown, if P=1.0 atm, V=145 mL, R= 0.082 L*atm*K-1 *mol-1, T=300K, m = 0.50 g MM=(m in g * RT)/PV = 85 g/mol. [Use V in liters] at Given that 0.77g of certain gas occupies volume ...
Chemistry 1011
... • At any given temperature, only a fraction of molecules possess enough energy to react • Raising the temperature raises the average energy of the molecules. This substantially increases the number of molecules possessing the energy necessary to react ...
... • At any given temperature, only a fraction of molecules possess enough energy to react • Raising the temperature raises the average energy of the molecules. This substantially increases the number of molecules possessing the energy necessary to react ...
Chem 171 Review Exam 2
... Enthalpy, ΔH: equate enthalpy change for a process to energy change for that process if it occurs at constant P; ΔH = qP ΔH = Hfinal — Hinitial ΔH associated with physical changes: ΔHvap, ΔH fus, ΔH sub where vap = vaporization, (g l), fus = fusion (l s), sub = sublimation (s g). This is not i ...
... Enthalpy, ΔH: equate enthalpy change for a process to energy change for that process if it occurs at constant P; ΔH = qP ΔH = Hfinal — Hinitial ΔH associated with physical changes: ΔHvap, ΔH fus, ΔH sub where vap = vaporization, (g l), fus = fusion (l s), sub = sublimation (s g). This is not i ...
Equilibrium chemistry
Equilibrium chemistry is a concerned with systems in chemical equilibrium. The unifying principle is that the free energy of a system at equilibrium is the minimum possible, so that the slope of the free energy with respect to the reaction coordinate is zero. This principle, applied to mixtures at equilibrium provides a definition of an equilibrium constant. Applications include acid-base, host-guest, metal-complex, solubility, partition, chromatography and redox equilibria.