A substance containing dye decomposes very quickly. The graphs below wereconstructed with data pertaining to changes in [dye] over time. The initialconcentration of dye was 1.0 M. After 20 seconds passed the concentration of dyewas measured to be 0.13 M.[Dye] (mM)10000.9-0.50.80.70.60.50.4In([Dye]) In(mM)6-1-1.51/[Dye] (1/mM)m0.3-220.20.1-2.501020010201020time (sec)time (sec)time (sec)1. What is the order for the overall reaction? Justify your answer.Your answer* 2. What is the rate law for the overall reaction? *Your answer3. Calculate the rate constant, k, for the reaction *Your answer4. What is the half life for this decomposition? *Your answer

Given: [Dye]0=1.0M;[Dye]=0.13M;t=20.sStep 1: Determine the order of the reaction.From the three…

Answered: A substance containing dye decomposes…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Section 5. For a different reaction, the plot of the natural log of concentration versus time in seconds plot was linear with a slope of -0.156 s¹. a. What is the order of this reaction? 1st order b. What is the rate law of this reaction? C. What is the integrated rate law of this reaction? d. Calculate the rate of the reaction if the concentration is 0.35 M. Show your work. Date
The rate of a certain reaction is given by the following rate law: rate -k [N;][H,]* Use this information to answer the questions below. What is the reaction order in Ny? ? What is the reaction order in Hy? 2 What is overall reaction order? At a certain concentration of N, and Hy, the initial rate of reaction is 71.0 M/s. What would the initial rate of the reaction be if the concentration of Ny were doubled? Round your answer to 3 significant digits. M 17.8 The rate of the reaction is measured to be 0.290 M/s when (N)- 1.6 M and [H) - 0.71 M. Calculate the value of the rate constant. Round your answer to 2 significant digits.
The rate of a reaction is how quickly the reaction goes to completion. If two reactions have the same amount of reactant, increasing the rate does not increase the amount of product produced, it simply reduces the time that it takes to make the product. Using the internet , research the one factors below that affect the rate of a chemical reaction. 1. Reactant concentration ( add an example and be very detailed add graphs as well) Be sure to include the following terms as they relate to chemical reactions: collision theory Be very detailed potential energy diagrams be very detailed activation energy be very detailed Your work should be written in complete sentences, and assume your audience is grade 11 chemistry students who do not understand this unit. Make sure all research is put into your own words!
Here is a graph of the molarity of thionyl chloride (SOC1₂) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. M 0.003 0.00211 0.002 0.001 0 y 10 15 seconds 20 25 30 X Ś
Please answer all parts.
15) Answer the following questions by looking at the graph below. A catalyzed chemical reaction 90 A 75 PE (kJ) 65 50 Progress of the reaction i. What is the letter for the activation energy (E,) of the reaction? ii. What is the amount of activation energy in the presence of a catalyst? iii. Is the reaction exothermic or endothermic? 16) How much heat is needed to increase the temperature of a 38 g sample of lead from 38 "C to 52 °C? Specific heat of Pb = 0.128 J/g'C. (Show working out) 17). Identify if energy and/or matter are exchanged in an open, closed, and isolated system. Open- Closed- Isolated-
6. Reconsider the plot shown in Prelab Question 1. This plot shows a first order decay with an initial concentration of 0.010 M. Reaction Rate 0.0100 0.0080 0.0060 0.0040 0.0020 -0.0000 10 20 30 50 Time (s) a. Estimate the rate constant. b. Use your rate constant and equation 6 to estimate the half-life from the rate constant. c. Estimated the half-life directly from the plot. Are your two estimates of the half-life consistent? Explain why or why not. Concentration (M)
In the method of initial rates, only a small amount of reagent is used up (the change in concentration is small compared to the total concentration). The elapsed time is used to calculate the rate. Why is this more accurate than calculating the rate from the amount of time required to use up all of the reagent? (Hint: What happens to the rate as the concentration decreases?)
AMoving to another question will save this res Question 20 A graph that displays a straight line when the reciprocal of the concentration is plotted as a function of time. The graph has a slope of 0.482 and a y- intercept of 0.756. What is the rate constant? (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation-examples include 1.23 and 12.3 and 120. and -123) Question 20 of 29 AMoving to another question will save this response PIL esc %23 %24 4 & 7. 8 delete R T. Y TO tab enter D. F K return caps lock C V elt control option command option
[H2O2 (aq)], M 0.0850 0.170 0.250 0.350 0.350 0.350 0.350 [l* (aq)], M 0.100 0.100 0.100 0.100 0.200 0.300 0.400 A [H₂O₂ (aq)] At 1.4 2.9 4.2 5.9 12 18 24 -, (M-s¯¹) x 10-4

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