After 20 minutes a reaction mixture has a concentration of substance A of 0.78 M.  After a total of 45 minutes, the concentration of A has dropped to 0.23 M.  Determine the average rate of disappearance for A in M/min over this period of time.

Q: The following initial rate data are for the reaction of UO,* with hydrogen ion in aqueous solution:…

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Q: Contrast the average reaction rate with the instantaneous reaction rate. Use the paperclip button…

A: The ratio of the change in concentration of the reactant or the product with the time interval of a…

Q: What data should be plotted to show that experimental concentration data fits a zero-order reaction?…

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Q: For a chemical reaction, the rate constant at 43.7 °C is 0.003903 s, while the rate constant at 59.8…

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Q: Which of the following is TRUE about reaction rates? Rate constant is the same for the same reaction…

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Q: In order to calculate the activation energy (E,) of a reaction, the rate of the reaction was…

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: Initial Rate of Reaction Based on Initial Concentration of Reactants Concentration of Concentration…

A: We have given that  Trial Concentration of A (M) Concentration of B (M) Initial Rate (M/s) 1…

Q: In order to calculate the activation energy (Ea) of a reaction, the rate of the reaction was…

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Q: A reaction energy diagram is shown below. Describe how the reaction occurs using at least four of…

A: The reaction energy diagram for a particular reaction is defined as the energy plot versus the…

Q: Define reaction rate. Assuming constant temperature and a closed reaction vessel, why does the rate…

A: In any reaction there is reactant which reacts and forms new products.

Q: If A → B is exothermic, how does the activation energyfor the forward reaction compare with the…

A: Activation energy is the amount of energy needed to convert reactants to products.

Q: Which statement below best describes the relationship between activation energy and the rate…

A: Activation energy: When the reactant molecules convert into the products, they required the minimum…

Q: The concentration of Reactant A decreases from0.400 mol/L at 0.00 min to 0.384 mol/L at 4.00…

A: Average rate of the reaction is equal to the change in concentration of the reactant divided by the…

Q: Based on the activation energies and frequency factors, rank the following reactions from fastest to…

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Q: For the reaction 2NOCI 2NO + Cl, the rate constant k equals 0.020 L mol 1 s1 at a certain…

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Q: An experiment carries out the reaction A → products at three different initial concentrations of A…

A: Given, A→P let the rate  law for this reaction be : r=K[A]n          (i)where,r= rate of reactionK=…

Q: a) Express the rate of the reaction in terms of the change in concentration of each of the reactants…

A: Rate = -1/2 ∆[H2]/dt =-(0.067-1.00)/(40-0)*2 =0.0116625

Q: Which of the following is the best way to judge the relative activation energies between two given…

A: In order to find the best suited option we should first analyze all the given options. Delta G is…

Q: The reaction rate of a reaction at 60 °C will be greater than at 30°C because _____ A) the higher…

A: Given, T1= 30°C T2= 60°C T2> T1  (increase in temperature)

Q: Discuss trapping of intermediates with at least three examples to determine chemical reaction?

A: A reactive intermediate is a very short-lived, high-energy, highly reactive molecule. When reactive…

Q: llowing chemical reactions have the same activation energy, answer and submit. For keyboard…

A: Rate of reaction is depends upon activation energy.  As higher the activation energy,  lower is the…

Q: 19. Why are homogeneous catalysts harder to separate from products and leftover reactants than are…

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Q: The reactants A and B are mixed, and the reaction is timed until a color change occurs. The data are…

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Q: For the reaction 2NOCI 2NO + Cl, the rate constant k equals 0.020 L mol-1s1 at a certain…

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Q: What two points should be plotted to graphically determine the activation energy of this reaction?…

A: Answer is  x1 = 0.001379.   y1 = -0.37833  x2= 0.003636.    y2 = -0.99425  Raise = -0.61592  Run =…

Q: A reaction solution is made up of 10.0 ml of 4.0 M acetone, 10.0 mL of 1.0 M HCI, 10.0 mL of 0.0050…

A: Given : concentration of I2 used = 0.0050 M volume of I2 solution used = 10.0 mL volume of water…

Q: Consider the following graph of the concentration of asubstance X over time. Is each of the…

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Q: Draw a reaction profile (the graph of energy as a function of time as a reaction progresses) for the…

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Q: Consider

A: Given,  Step 1:  A⇀B+C  equilibrium Step 2: C + D ⟶  E     slow Overall Reaction ::  A+D ⟶B+E

Q: Determine the rise, run, and slope of the line formed by these points. rise: run: slope: What is the…

A: We have find out rise, run, slope and activation energy for the reaction.

Q: Find the wrong statement given below: A. Reaction rate increases with the increase in temperature.…

A: 1. Reaction Rate increases with the increase in temperature because the kinetic energy of molecules…

Q: Consider the following data showing the initial rate of a reaction (A→products) at several different…

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Q: A particular chemical reaction has a rate constant of 0.80 s- 40.0°C. What is the activation energy…

A: We have the value of rate constant at a different temperature , we have to predict the value of the…

Q: A student collected conducted 6 kinetics experiments for one raction by holding the concentrations…

A: Given : Straight line equation: y = -3,543.81 x +14.326

Q: Consider the following data showing the initial rate of a reaction (A→products) at several different…

A: Consider the reaction: A→ Products Let the order of the reaction with respect to A be α. The rate of…

Q: E C В E reaction coordinate

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Q: A reaction solution is made up of 10.0 ml of 4.0 M acetone, 10.0 mL of 1.0 M HCI, 10.0 mL of 0.0050…

A: Rate of reaction is defined as the change of concentration of product or reactants with time. For a…

Q: a) Determine the total order of the reaction. b) You want to increase the reaction rate as much as…

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Q: Consider the mechanism. Step 1: A B+C Step 2: C + D E Overall: A+D → B+E Determine the rate law for…

A: Given:

Q: How did the rate change when the reaction was performed at a higher temperature? why? expalin at the…

A: Rate of a reaction depends on temperature. As the temperature increases, the rate also increases.

Q: The rate of a certain reaction was studied at various temperatures. The table shows temperature (?)…

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Q: Describe how graphical methods can be used to determine the activation energy of a reaction from a…

A: To find: The description about how how graphical methods can be used to determine the activation…

Q: Define what is the reaction rate and b. Explain the importance of understanding reaction rates.

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…

Q: The yeast in bread dough feeds on sugar to produce carbon dioxide. Why does the dough rise faster in…

A: In the question , a reaction has been discussed and it is asked to tell the reason behind higher…

Q: Consider the reaction profile shown in image. The activation energy of the reaction is represented…

A: Given : Graph of energy versus Progress of a reaction To find : Activation energy

Q: Define both elementary and non-elementary reactions. For the former, describe how we write reaction…

A: given elementary or non-elementary reaction

Q: Initial-rate data at a certain temperature is given in the table for the reaction N,0,(g) → NO(g) +…

A: Recall the reaction, N2O3 ----> NO + NO2 Rate law equation can be written as, Rate = k [N2O3]x…