Sample concentration vs. time data is analyzed to determine the reaction order, rate law and rate constant.

Views: 27638
Eric Zuckerman

How do you find the rate constant of a reaction, if all you're given is a table of kinetic data (concentrations and times)

Views: 310439
chemistNATE

This chemistry video tutorial provides a basic introduction into method of initial rates which is useful for determining the order with respect to the reactants and the overall reaction order. In addition, the initial rates method is useful for experimentally determining the rate law expression for a particular chemical reaction. This video explains how to calculate the value of the rate constant K and how to determine its units. This video is part of the chemical kinetics series. It contains plenty of examples and practice problems.
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Views: 134225
The Organic Chemistry Tutor

Showing tips and pitfalls for determining rate of reaction by the gradient of a concentration-time graph

Views: 13875
Kegs Chemistry

This chemistry video tutorial provides the equations and formulas needed to solve zero order, first and second order integrated rate law problems including those with half life and rate constant K calculations. This video contains plenty of examples and practice problems for you to work on.
Here is a list of topics:
1. Chemical Kinetics - Reaction Rates
2. Average Rate of Reaction Formula - Change in Concentration Divided By Change in Time
3. Concentration vs Time Graphs
4. Rate Law Expression - Rate Constant K and Initial Concentration
5. Zero Order Reaction - Integrated Rate Law Equation
6. Half Life Formula, Initial Concentration of Reactant and Rate Constant K Relationship
7. Units of Rate Constant K - Molarity, Moles, Liters, and Units of time - Seconds, Minutes, Hours, Days, etc
8. Inverse Relationship Between Rate Constant K and Half Life
9. Rate Constant K, Temperature, Activation Energy and Catalyst
10. Initial Rates vs Concentration
11. First Order Integrated Rate Law Equation
12. Straight line Plot - Ln[A] vs time - Graphs
13. Slope = -K Rate Constant
14. Half Life Independent of Initial Concentration for a first order reaction
15. Natural Log and Exponential Form of Integrated Rate Law
16. Second Order Reaction Integrated Rate Law Formula
17. Integrated Rate Law Problems
18. Identifying the Order of the Reaction Using the Units of K

Views: 161847
The Organic Chemistry Tutor

Views: 7777
Tj Dortch

Views: 20370
LPSChemistry

Here I look at 3 fairly tricky examples of how the order of the reaction for each of the reactants is determined, allowing the rate equation to be constructed. In an accompanying video "Kinetics 1" I show an example of how to rearrange the rate equation to determine the rate constant (k).

Views: 2634
FranklyChemistry

AP chemistry
Table of Contents:
00:00 - Introduction
00:59 - Integrated Rate Laws
01:54 - First-Order Processes
02:11 - First-Order Processes
02:34 - First-Order Processes
02:53 - First-Order Processes
03:29 - First-Order Processes
03:30 - First-Order Processes
03:32 - First-Order Processes
04:16 - First-Order Processes
04:17 - First-Order Processes
04:36 - First-Order Processes
05:06 - Second-Order Processes
05:46 - Second-Order Processes
05:58 - Second-Order Processes
06:44 - Second-Order Processes
07:13 - Second-Order Processes
07:41 - Half-Life
08:30 - Half-Life
09:18 - Half-Life
09:30 - End of presentation
09:37 - End of presentation

Views: 373
Kip Hendren

Practice Problems that determine the rate law from initial rate data. Solve for rate and rate constants.

Views: 2423
Linda Hanson

Visit http://ilectureonline.com for more math and science lectures!
In this video I will determine the rate law and the rate constant, k.

Views: 48532
Michel van Biezen

Dr. Shields further discusses the differential rate law and the initial instantaneous rate. How to determine the rate law for a reaction using the method of initial rates is discusses with an example. General Chemistry

Views: 7051
Shawn Shields

037 - The Rate Constant
In this video Paul Andersen describes the characteristics of the rate constant in chemical reactions. The rate constant is highly variable in reactions and must be determined experimentally. The rate constant is dependent on both temperature and the presence of a catalyst. In a first-order reaction the rate constant and the half-life are both independent of the concentration and inversely proportional.
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(n.d.). http://www.yorku.ca/tropchem/thesis/appdx-a.pdf.

Views: 107226
Bozeman Science

This chemistry video tutorial focuses on the Arrhenius equation and how to derive it's many different forms within the subject of chemical kinetics.
Here is a list of topics:
1. Arrhenius Equation and the Rate Constant K
2. The units of R and the activation energy
3. Rate law expression and the concentration of reactant A
4. Frequency Factor, Collision Frequency and Steric Factor
5. Rate of Reaction, Rate Constant K, and Activation Energy
6. The Effect of a Catalyst on Activation Energy and Reaction Rate
7. Slope, Ea, and R
8. Slope Intercept Form Linear Arrhenius Equation
9. Factors Affecting the rate of the reaction - concentration, temperature, catalyst, activation energy and rate constant K
10. Arrhenius Equation / Formula Graph

Views: 135237
The Organic Chemistry Tutor

Dr. Shields demonstrates how to determine the order of each reactant using a table of data collected in method of initial rates experiments. Part 1 of 3. General Chemistry

Views: 17479
Shawn Shields

How to calculate reaction rate from your absorbance data!

Views: 28416
kirk kawagoe

A snappy video looking into those rate graphs including concentration-time and rate-concentration graphs. It will then look at how you can work out order from them. Judge for yourself - ORDER, ORDER!

Views: 41310
Allery Chemistry

More free chemistry help videos: http://www.chemistnate.com
How to find the reaction order if you're given a table of kinetic data. Trick: Create two new columns, ln[A] (1st order) and 1/[A] (2nd order), then calculate first differences. Whichever set of first differences is approximately constant .... that corresponds to the order of your reaction.

Views: 165359
chemistNATE

A tutorial on determining reaction orders and rate laws.

Views: 189076
Wes Adams

Example of graphing first-order rate data to see a linear relationship, and calculating rate constant k from the slope.
Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/half-life-of-a-first-order-reaction?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Missed the previous lesson? https://www.khanacademy.org/science/chemistry/chem-kinetics/reaction-rates/v/experimental-determination-of-rate-laws?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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Views: 95855
Khan Academy Organic Chemistry

An introduction to mechanisms and the rate determining step. Example of finding rate law of multistep reaction with initial slow step.
Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/arrhenius-equation/v/catalysts?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Missed the previous lesson? https://www.khanacademy.org/science/chemistry/chem-kinetics/arrhenius-equation/v/elementary-rate-laws?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1
Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

Views: 347319
Khan Academy Organic Chemistry

This tough nut to crack involves a rate table where concentration of reactants change on more than one reagent making it less obvious what effect that reagent has on rate. Take a look at this video to find out what I mean exactly. Hope this method will help!

Views: 26162
Allery Chemistry

How to use the graphing calculator to determine the order of a reaction in an integrated rate law problem.

Views: 6245
Arapahoe AP Chemistry

Oh such a popular question with examiners! This video looks at how you can work our orders and rate equation from a table of initial rates and initial concentrations. Watch and learn!

Views: 16642
Allery Chemistry

This chemistry video tutorial provides a basic introduction into reaction mechanisms within a chemical kinetics setting. It explains how to write the rate law expression for a reaction mechanism. A reaction mechanism consist of a series of elementary steps or elementary reactions whose rate law can be written from its molecularity - that is from the coefficients of the balanced reaction. The rate of a reaction mechanism is completely dependent on the slow step or the rate-determining step. This video explains how to substitute an intermediate when writing rate law expressions. It contains plenty of examples and practice problems.
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Views: 110328
The Organic Chemistry Tutor

Who likes math! Oh, you don't? Maybe skip this one. Unless you have to answer this stuff for class. Then yeah, watch this.
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Views: 274018
Professor Dave Explains

This chemistry video tutorial provides a basic introduction into reaction rates. The rate of reaction can be calculated from the slope of a concentration vs time graph. The slope of the secant line is equivalent to the average rate of the reaction. You can calculate the slope with the average rate of reaction formula using the data from a graph. The instantaneous rate of reaction over a time interval is equal to the slope of the tangent line. This video is part of the chemical kinetics series. It contains plenty of examples and practice problems of calculating the average rate of appearance of products and the average rate of disappearance of reactants. The production rates of products will always be positive as the reaction proceeds in the forward direction and the rate of consumption of reactants will always be negative.
New Chemistry Video Playlist:
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Views: 35026
The Organic Chemistry Tutor

Visit http://ilectureonline.com for more math and science lectures!
In this video I will find the activation energy of a reaction (example).

Views: 23612
Michel van Biezen

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Q. Consider the equation for the decomposition of SO2Cl2.
SO2Cl2 (g) → SO2 (g) + Cl2 (g)
The concentration of SO2Cl2 is monitored at a fixed temperature as a function of time during the decomposition reaction, and the following data are tabulated:
(a) Show that the reaction is first order and determine the rate constant for the reaction.
(b) Use the graph and the best fitting line in the previous example to predict the concentration of SO2Cl2 at 1900 s.
The First-Order Integrated Rate Law: Using Graphical Analysis of Reaction Data
The plot is linear, confirming that the reaction is indeed first order. To obtain the rate constant, fit the data to a line. The slope of the line is equal to −k. Since the slope of the best fitting line (which is most easily determined on a graphing calculator or with spreadsheet software such as Microsoft Excel) is −2.90 × 10−4s−1, the rate constant is therefore +2.90 × 10−4s−1.

Views: 28
Study Force

This video explains method of determination of zero order rate constant without using graphs. This method uses equation for determination of rate constant for zero order process.

Views: 621
Professor Tushar

This general chemistry study guide video lecture tutorial provides an overview of chemical kinetics. It contains plenty of examples, practice problems, and conceptual questions to help you to master the course. This video is especially helpful to those taking AP chemistry in high school or general chemistry in college.
Here is a list of topics:
1. How to calculate the rate of the reaction using the change in concentration and time
2. Determining the order of a reactant and the overall order of the reaction using the method of initial rates.
3. How to determine the rate equation or rate law expression
4. Calculating the rate constant K and the units of K
5. Understanding the difference between the first order, second order, and zero order reaction.
6. Equations and formulas for zero order, first, and second order reactions
7. Half Life Formula, Initial Concentration of A and Rate constant K
8. Factors affecting reaction rate – concentration, temperature, and catalyst
9. Relationship between the rate of the reaction and the concentration
10. Rate constant K, temperature, catalyst, activation energy and potential energy diagrams
11. Forward activation energy vs reverse activation energy
12. Arrhenius Equation
13. Half Life Problems and Half Life Method
14. Collision frequency, steric factor, and frequency factor
15. Reaction Mechanism – Slow Step – Rate Determining Step
16. How To Find the Intermediate and Catalyst in a Reaction Mechanism

Views: 318034
The Organic Chemistry Tutor

If you have rate constants at different temperatures, you can use Microsoft Excel (or OpenOffice) to find the Activation Energy.
The slope of a (ln k) vs (1/T) graph is -Ea/R. So just take the slope, flip the sign, and multiply by 8.314 ... the answer will be in J/mol
Check me out: http://www.chemistnate.com

Views: 17222
chemistNATE

A handy video showing how you can work out rate and concentration of reactants in a rates of reaction table. A fool proof method. Enjoy!

Views: 12762
Allery Chemistry

Learn how to find the rate of change from graph. The rate of change is the rate at which y-values are changing with respect to the change in x-values. To determine the rate of change from a graph, a right triangle is drawn on the graph such that the line of the graph is the hypothenuse of the right triangle. Then the rate of change of the graph is given by the length of the vertical leg of the right triangle divided by the length of the horizontal leg of the right triangle.
#linearequations #sloperateofchange

Views: 116322
Brian McLogan

Edited by Dan Rosenthal. Everything else by me.

Views: 104074
GenChem Concepts

Integrating the rate law for the 0th order reaction gives
[A] = [A]0 - kt
So a plot of [A] vs t gives a linear plot with slope -k and y-intercept [A]0.
It's a beautiful thing. Tough-ish math included.
Check me out: http://www.chemistnate.com

Views: 30828
chemistNATE

Given two rate constants at two temperatures, you can calculate the activation energy of the reaction.
In the first 4m30s, I use the slope formula (y2-y1 / x2-x1)
In the last half, I use the Arrhenius equation to solve for Ea directly.

Views: 55496
chemistNATE

The video will show you how to use excel to analyze concentration and time to determine the order of a reactant.

Views: 6654
GVChemistry

Arrhenius plots are just another addition this Nobel prize winning Swedish scientist brought to Chemistry. In this video you will find out how to calculate activation energy and the Arrhenius constant using an Arrhenius plot. Yes.. y=mx+c makes an appearance.

Views: 24019
Allery Chemistry

Rate of reaction is defined as the change in the amount of reactants or products per unit time.
In a graph of quantity of product/reactant over time, the rate of reaction is equal to the gradient of the graph.
This video is created by http://www.onlinetuition.com.my/
More videos and free notes are available at http://spmchemistry.onlinetuition.com.my/

Views: 34974
myhometuition

This chemistry video tutorial provides a basic introduction into first order reactions. It explains how to solve first order reaction problems such as calculating the final concentration and determining how long it will take for the concentration of the reactant to reach a certain. This video also explains how to calculate the half life of a first order reaction given the rate constant K. It discusses the units of the rate constant k for a first order reaction and it explains how to derive the integrated rate law expression for a first order reaction using techniques in calculus such as integration by separation of variables. This chemical kinetics tutorial contains plenty of example problems.
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Views: 30118
The Organic Chemistry Tutor

How to determine the order, rate constant, and half life of a second order reaction using Excel.

Views: 2175
Mike Davis

Determine the rate law for a reaction occurring in a batch reactor using differential analysis. Made by faculty at the University of Colorado Boulder, Department of Chemical and Biological Engineering.
Check out our Kinetics/Reactor Design playlists: https://www.youtube.com/user/LearnChemE/playlists?view=50&flow=list&shelf_id=7
Are you using a textbook? Check out our website for videos organized by textbook chapters: http://www.learncheme.com/screencasts/kinetics-reactor-design

Views: 11536
LearnChemE

In this video you will learn how to plot the concentration of reactants vs time to determine the rate order and rate constant of a chemical reaction. This is accomplished by using integrated rate laws. For example, if a plot of concentration vs time is linear, then the reaction is a zeroth order reaction and the slope of the best fit line is the rate constant (times negative 1). If a plot of the natural log of concentration vs time is linear, then the reaction is first order and the slope is once again the rate constant (times negative 1). Lastly, if the plot of one over concentration vs time is linear, then the reaction is second order and the rate constant is the slope (not negative in this case).

Views: 2844
Real Chemistry

In this example problem, we use the straight-line graph of concentration and time for a reaction to determine the integrated rate law, differential rate law, and half-life for a first order reaction. The problem:
Data from the reaction BC --) Products is plotted below. Calculate the concentration at 60 seconds. Calculate the rate of reaction at 60 seconds. Calculate the first half life for the reaction. Calculate the time it will take for the reaction to reach 90% completion.

Views: 586
Matthew Gerner

Nasty graph, natural logs, yuk. See if this helps you to calculate Ea from rate constant and temperature data. Only temperature and a catalyst will change the rate constant. Arrhenius worked out how.

Views: 66895
Richard Thornley