Solution
... 59) You have a galvanic cell with two solutions; Solution one is 0.3M FeCl2, solution two is 1.7 M MgCl2. The electrode in solution one is Fe and the electrode in solution 2 is Mg. The temperature is 85º C. What is the spontaneous cell potential in this setup? A) +1.94 V B) +1.93 V C) +1.92 V D) +1 ...
... 59) You have a galvanic cell with two solutions; Solution one is 0.3M FeCl2, solution two is 1.7 M MgCl2. The electrode in solution one is Fe and the electrode in solution 2 is Mg. The temperature is 85º C. What is the spontaneous cell potential in this setup? A) +1.94 V B) +1.93 V C) +1.92 V D) +1 ...
Introduction - HCC Learning Web
... of the substance together. The consequences of this dependence are very important in chemical reactions. Because bonds are formed or broken during a reaction, the properties of product molecules differ from those of reactant molecules. If there is a significant difference, a distant signal that a ch ...
... of the substance together. The consequences of this dependence are very important in chemical reactions. Because bonds are formed or broken during a reaction, the properties of product molecules differ from those of reactant molecules. If there is a significant difference, a distant signal that a ch ...
Chemistry Lab 2010
... • Measure how initial rate changes as concentration of each reactant is changed. • Zeroth order = concentration doubles, rate unchanged • First order = concentration doubles, rate doubles • Second order = concentration doubles, rate quadruples Remember that rate is change in concentration divided by ...
... • Measure how initial rate changes as concentration of each reactant is changed. • Zeroth order = concentration doubles, rate unchanged • First order = concentration doubles, rate doubles • Second order = concentration doubles, rate quadruples Remember that rate is change in concentration divided by ...
Chemical Equations and Reactions
... Hg (mercury) can exist by itself...but, oxygen will need to bond with another oxygen to make O2 (diatomic) To balance the atoms we need to: Put the coefficient of 2 in front of reactant HgO. Put the coefficient of 2 in front the product Hg. ...
... Hg (mercury) can exist by itself...but, oxygen will need to bond with another oxygen to make O2 (diatomic) To balance the atoms we need to: Put the coefficient of 2 in front of reactant HgO. Put the coefficient of 2 in front the product Hg. ...
Chemical Kinetics
... 1. The stoichiometry of the balanced reaction must be followed. 2. The rate-determining step (RDS) is always the SLOW elementary step of the reaction. The coefficients in the SLOW elementary step and previous steps determine the orders of reactants in the rate law. 3. Intermediates (chemicals produc ...
... 1. The stoichiometry of the balanced reaction must be followed. 2. The rate-determining step (RDS) is always the SLOW elementary step of the reaction. The coefficients in the SLOW elementary step and previous steps determine the orders of reactants in the rate law. 3. Intermediates (chemicals produc ...
Unit 1: Building Blocks Homework
... H2NCONH2. An adult male, on average, excretes 30g of urea each day. How many moles are there in 30g of urea? ...
... H2NCONH2. An adult male, on average, excretes 30g of urea each day. How many moles are there in 30g of urea? ...
Exam 2 Fall 2005 Chemsitry 1211
... Ca(OH)2 solution, what is the molarity of the Ca(OH)2 solution? a.) b.) c.) d.) e.) ...
... Ca(OH)2 solution, what is the molarity of the Ca(OH)2 solution? a.) b.) c.) d.) e.) ...
Chemical Reactions and Stoichiometry
... a. Evolution of heat and light (simultaneously) b. Production of a gas (bubbles, odor change) c. Formation of a precipitate (solid, cloudy) d. Color change (not introduced by an outside source such as dye or ink) Characteristics of a Chemical Reaction – the atoms in one or more reactant rearrange wh ...
... a. Evolution of heat and light (simultaneously) b. Production of a gas (bubbles, odor change) c. Formation of a precipitate (solid, cloudy) d. Color change (not introduced by an outside source such as dye or ink) Characteristics of a Chemical Reaction – the atoms in one or more reactant rearrange wh ...
Kinetics and Equilibrium
... ΔH is negative when the reaction is exothermic. Heat of reactants were greater than the products. ...
... ΔH is negative when the reaction is exothermic. Heat of reactants were greater than the products. ...
Conservation of Energy in chemical reactions, Hess`s Law
... There are many chemical reactions that are difficult to study directly because the energy produced is very high, or because the reactants are difficult to obtain or handle. Hess’s Law (named after the scientist who proposed it) helps us to calculate H for a reaction by using data from other reactio ...
... There are many chemical reactions that are difficult to study directly because the energy produced is very high, or because the reactants are difficult to obtain or handle. Hess’s Law (named after the scientist who proposed it) helps us to calculate H for a reaction by using data from other reactio ...
Chapter 14…Kinetic Theory
... 7. The reaction rate expression for an irreversible reaction is: Rate = _________________________________ 8. The equilibrium constant expression for a reversible reaction is Keq = _______________________________ 10. List the six factors that can affect the rate of reaction: a. b. c. d. e. f. Use the ...
... 7. The reaction rate expression for an irreversible reaction is: Rate = _________________________________ 8. The equilibrium constant expression for a reversible reaction is Keq = _______________________________ 10. List the six factors that can affect the rate of reaction: a. b. c. d. e. f. Use the ...
Oxidation and Reduction - UCLA Chemistry and Biochemistry
... bonds between a carbon and atoms that are less electronegative than carbon (often hydrogen). ...
... bonds between a carbon and atoms that are less electronegative than carbon (often hydrogen). ...
energy and rates practice test answers
... If for the reaction aX + bY products, the rate law is determined to be , r= [X]1[Y]0then the order of the reaction is 0 increasing the concentration of Y will have no effect on the rate increasing the concentration of X will have no effect on the rate increasing the concentration of Y will increas ...
... If for the reaction aX + bY products, the rate law is determined to be , r= [X]1[Y]0then the order of the reaction is 0 increasing the concentration of Y will have no effect on the rate increasing the concentration of X will have no effect on the rate increasing the concentration of Y will increas ...
Part I - American Chemical Society
... Which compound will precipitate at the lowest [PO43-] when a solution of Na3PO4 is added? (A) Ag3PO4 (Ksp = 1 × 10-16) (B) Ca3(PO4)2 (Ksp = 1 × 10-33) (C) Mg3(PO4)2 (Ksp = 1 × 10-24) (D) AlPO4 (Ksp = 1 × 10-20) 36. Which salt is significantly more soluble in a strong acid than in water? ...
... Which compound will precipitate at the lowest [PO43-] when a solution of Na3PO4 is added? (A) Ag3PO4 (Ksp = 1 × 10-16) (B) Ca3(PO4)2 (Ksp = 1 × 10-33) (C) Mg3(PO4)2 (Ksp = 1 × 10-24) (D) AlPO4 (Ksp = 1 × 10-20) 36. Which salt is significantly more soluble in a strong acid than in water? ...
Rates of Reaction: Chemical Kinetics 50
... A. The higher the activation energy barrier, the faster the reaction. B. Increasing the concentration of a reactant may increase the rate of a reaction. C. Adding a catalyst speeds up the rate of reaction for both the forward and reverse reactions. D. Increasing the concentration increases the rate ...
... A. The higher the activation energy barrier, the faster the reaction. B. Increasing the concentration of a reactant may increase the rate of a reaction. C. Adding a catalyst speeds up the rate of reaction for both the forward and reverse reactions. D. Increasing the concentration increases the rate ...
Chapter 8 Section 1 Describing Chemical Reactions
... Sample Problem E Solution 1. Identify the reactants. Magnesium will attempt to displace lead from lead(II) nitrate. 2. Check the activity series. Magnesium is more active than lead and displaces it. 3. Write the balanced equation. Mg + Pb(NO3)2 Pb + Mg(NO3)2 Double-Displacement Reactions • In a do ...
... Sample Problem E Solution 1. Identify the reactants. Magnesium will attempt to displace lead from lead(II) nitrate. 2. Check the activity series. Magnesium is more active than lead and displaces it. 3. Write the balanced equation. Mg + Pb(NO3)2 Pb + Mg(NO3)2 Double-Displacement Reactions • In a do ...
List of Definitions for AS Chemistry
... Biological catalysts such as enzymes are very selective in the reactions that they catalyze, and some are absolutely specific, operating for only one substance in only one reaction. For reactions that normally produce a pair of optical isomers (racemic mixture) when carried out in the lab, enzymes a ...
... Biological catalysts such as enzymes are very selective in the reactions that they catalyze, and some are absolutely specific, operating for only one substance in only one reaction. For reactions that normally produce a pair of optical isomers (racemic mixture) when carried out in the lab, enzymes a ...
