Home
Search results “Determining rate constant from absorbance vs concentration”

09:55
Sample concentration vs. time data is analyzed to determine the reaction order, rate law and rate constant.
Views: 26258 Eric Zuckerman

04:36
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: 305142 chemistNATE

10:58
In this tutorial I show you how to (again) generate a standard curve, and use that standard curve to determine the concentration of an unknown solution (assuming that we are able to obtain its absorbance). I perform this tutorial in Excel 2010 on Windows 7. For more office tutorials on multiple operating systems and in different programs, visit my website: http://iws.collin.edu/mgarcia/Office/
Views: 303929 Mark Garcia

04:05
Simple: 1) Find the most absorbed wavelength in your sample using a spectrometer. 2) Accurately measure the colour of multiple concentrations of your sample. 3) Plot a graph of concentration against concentration -- tah dah you have a calibration curve based on the Beer-Lambert Law. Now you can find the unknown concentrations of other samples. Tricky: Absorbance = log Io/ I = elc where Io= intensity of incoming light I=intensity of outgoing light e= constant for the substance l =path length of light through the substance c=concentration of substance It's in the data book!
Views: 115468 Richard Thornley

12:30
In this review I show you how to construct a standard curve from the data that you generated in lab, and how to use that standard curve to determine the "unknown" sample's concentration.
Views: 108511 Mark Garcia

06:53
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. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: "File:Aufgeschnittener Metall Katalysator Für Ein Auto.jpg." Wikipedia, the Free Encyclopedia. Accessed October 20, 2013. http://en.wikipedia.org/wiki/File:Aufgeschnittener_Metall_Katalysator_f%C3%BCr_ein_Auto.jpg. File:Thermometer 0.svg, n.d. http://commons.wikimedia.org/wiki/File:Thermometer_0.svg. "File:Verbrennung Eines Zuckerwürfels .png." Wikipedia, the Free Encyclopedia. Accessed October 19, 2013. http://en.wikipedia.org/wiki/File:Verbrennung_eines_Zuckerw%C3%BCrfels_.png. (n.d.). http://www.yorku.ca/tropchem/thesis/appdx-a.pdf.
Views: 103686 Bozeman Science

06:38
How to calculate reaction rate from your absorbance data!
Views: 27286 kirk kawagoe

04:18
Absorbance vs concentration
Views: 643 Chemistry Chemistry

05:17
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: 160823 chemistNATE

13:40
Using Excel to do the Lineweaver-Burk plot
Views: 43447 Mark Temple

05:02
Views: 13100 acr92651

09:30
In this tutorial I show you how to (again) generate a standard curve, and use that standard curve to determine the concentration of an unknown solution (assuming that we are able to obtain its absorbance). I perform this tutorial in Excel 2011 on a Mac. For more office tutorials on multiple operating systems and in different programs, visit my website: http://iws.collin.edu/mgarcia/Office/
Views: 179549 Mark Garcia

06:00
Chemistry 151 lab calculation for grams of unknown dye sample extracted from various candies
Views: 100797 Lisa Valerie Daconta

04:37
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: 16328 chemistNATE

08:24
CHEM113L General Chemistry II Lab Rose-Hulman Institute of Technology Prof. Ross Weatherman
Views: 33027 Rose-Hulman Online

08:06
This is a how-to tutorial video for graphing concentration vs absorbance data from a Beer's Law lab. Creating the graph, labeling axes, and inserting a trend line with equation is discussed.
Views: 6173 MeyersChemistry

27:11
Theory and analysis for the Kinetics of Fading Dye experiment in AP Chemistry ... with the system flooded for one reactant.
Views: 23425 chempatenaude

06:08
Visual examples illustrate Beer's law, namely that absorbance is proportional to both concentration and path length. Our eyes are good colorimeters! This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - http://elearning.flinnsci.com ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Be sure to subscribe and check out more videos! Subscribe: https://www.youtube.com/channel/FlinnScientific/ Facebook: https://www.facebook.com/FlinnScientific/ Website: https://www.flinnsci.com/
Views: 48397 FlinnScientific

08:17
This video is about the AP Chemistry Lab Experiment #13: A Spectrometric Determination of Keq of the Iron(III)-Thiocyanate System. In this video you will learn how to determine the equilibrium constant of a system using Beer-Lambert law. In the video, a spectrophotometer is used to measure the absorbance of the Iron(III)-Thiocyanate solution in order to find the equilibrium concentrations of the system components and the determine Keq. Students studying Chemistry at different levels could highly benefit from this video. You can refer to the link below to watch a detailed video that explains the Beer-Lambert and its uses. AP Chemistry Investigation #1: Beer-Lambert Law. https://youtu.be/j3dgdwzRWls
Views: 25421 Ali Hayek

10:59
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: 51237 chemistNATE

39:00
This chemistry video tutorial explains how to solve ice table equilibrium problems. It shows you how to write the equilibrium expression given a chemical reaction and how to calculate the equilibrium constant. This video contains plenty of examples and practice problems. General Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&list=PL0o_zxa4K1BV-uX6wXQgyqZXvRd0tUUV0&index=3 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Here is a list of topics: 1. Writing The Equilibrium Expression From a Chemical Reaction 2. Calculating Kp or Kc - The Equilibrium Constant Given The Equilibrium Concentrations of The Reactants and Products 3. Ice Table Problems - Determining Kc Given Equilibrium and Initial Concentrations 4. How to Calculate The Equilibrium Concentration Given Kc or Kp 5. Reaction Quotient Q and Equilibrium Constant K 6. How To Determine Which Direction The Reaction Will Shift Using The Reaction Quotient Q 7. Solving an Ice Table Equilibrium Problem Using The Quadratic Formula

08:15
A video overview of first order elimination rate constant and its relationship to half-life. View the rest of my pharmacology videos below: (1) Pharmacokinetics & ADME: http://youtu.be/CMRZqdrkCZw DRUG ABSORPTION Videos: (2) Drug Absorption Overview: http://youtu.be/eya9jR3v7i8 (3) Bioavailability: http://youtu.be/rv2Rpdi7OHM DRUG DISTRIBUTION Videos: (4) Drug Distribution Overview: http://youtu.be/DH2WGUd7MBs (5) Volume of Distribution: http://youtu.be/B63sqUfvFQQ ------------------ DRUG METABOLISM Videos: (6) First Pass Metabolism: http://youtu.be/5AB8WkCbz4k (7) Phase I Metabolism: http://youtu.be/GGLddVpVg9M (8) Phase II Metabolism: http://youtu.be/iIWAUo05GFE (9) First Order and Zero Order Kinetics: http://youtu.be/XEotDfKhNTw (10) Drug Half-life: http://youtu.be/eTqPsqnbwoc (11) First-order elimination rate constant and half-life-details: http://youtu.be/De9999Jj-5Q ------------------------------------------ DRUG ELIMINATION / EXCRETION (12) Drug Clearance: http://youtu.be/csywV3MYHDg (13) Renal Excretion of Drugs: http://youtu.be/8c3gqI6R-Vw (14) Ion Trapping: [not yet posted] (15) Dosage Regimens: [not yet posted] --------------------------------------------------------------------- Factors That Affect Drug Metabolism: (16) Enzyme Induction: http://youtu.be/Dtbkc8F_ff0 (17) Competitive Inhibition Overview: http://youtu.be/iNIxMuHuL3w (18) Competitive Inhibition of Statins: http://youtu.be/Lt1-mjMFniE (19) Acetaminophen toxicity (Clinical Correlate): [Not yet posted] (20) Pharmacogenomics Overview: http://youtu.be/3vZxbX5P9TU (21) Slow Acetylators - Pharmacogenomics: [not yet posted] Help us caption & translate this video! http://amara.org/v/B5Ex/
Views: 68864 Areo Saffarzadeh

06:27
The spectrophotometer is an instrument used to measure the effect of a sample on a beam of light. We can learn a lot about a substance by studying the way it interacts with light. In this video, we'll demonstrate how to use a spectrophotometer to perform a basic experiment: determining the absorbance spectrum of red food coloring. Included in the video is a short animation that illustrates the inner workings of a spectrophotometer. Special thanks to Joe Issa and the Gaston College Biotechnology department for helping to make this video. Practice using a virtual spec: http://www.ncbionetwork.org/educational-resources/elearning
Views: 300389 BioNetwork

12:34
This chemistry video tutorial provides a basic introduction into how to solve chemical equilibrium problems. It explains how to calculate the equilibrium constant k value given the equilibrium concentrations and equilibrium partial pressures of all reactants and products. If explains how to calculate the equilibrium constant k for a new reaction by changing another reaction. Finally, it discusses how to calculate the equilibrium constant k using ice tables. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/

09:10
Who likes math! Oh, you don't? Maybe skip this one. Unless you have to answer this stuff for class. Then yeah, watch this. Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 245260 Professor Dave Explains

19:58
This video is about the AP Chemistry Investigation #11: What is the Rate Law of the Fading of Crystal Violet Using Beer's Law? In this video you will learn how to determine the pseudo-rate order in concentration of Crystal Violet in the presence of sodium hydroxide using Beer-Lambert Law. The reaction between the CV and sodium hydroxide results in a colourless species which will lead to fading the colour of the original solution. Monitoring the absorbance of CV, we will be able to monitor the change on its concentration during the course of the reaction. Students studying Chemistry at different levels could highly benefit from this video.
Views: 14981 Ali Hayek

11:26
Crystal Violet is reacted with sodium hydroxide. The change in color is tracked with a Vernier Spectrovis Plus. The absorbance is used to determine the order with respect to crystal violet. A second reaction is run with double the concentration of sodium hydroxide to show the order of hydroxide. Prior to running a Beer's Law calibration curve is constructed so that the absorbance values can be converted into concentrations. The rate order and rate constant can be found with some manipulations, some of which can be done with the Vernier Labquest 2.
Views: 3589 Scott Milam

06:13
Views: 47816 Khan Academy

07:40
Here we create 3 different plots to evaluate if the reaction is zero order, first order, or second order.
Views: 26708 profpiersol

02:13
#Calculating the concentration of a substance from its absorbance
Views: 178 Peter Klappa

06:54
The Michaelis constant is the substrate concentration at which an enzyme operates at one half of its maximum velocity. How can you calculate this constant based on your observations?
Views: 48618 Dr. Gerard Verschuuren

01:12
Filmen viser hvordan man i loggerpro måler absorbansen som funktion af tiden

09:23
In this video I explained Integrated rate law method for a zero Order reaction.
Views: 63783 Komali Mam

06:35
Given drug concentrations in a patient's blood measured over a 12 hour period determine the drug decay rate constant, initial concentration of the drug, and volume of the patient's blood using the integral method to analyze the kinetic data. 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: 3392 LearnChemE

10:33
This video describes 1. Transferring Data the Vernier cmbl file type to Excel using Logger Pro 2. Setting up plots for the analysis of kinetic data Just a note, I accidentally called the first graph the "Concentration vs Time" when it is actually absorbance vs time.
Views: 10578 kirk kawagoe

10:39
How to calculate enzyme activity, in units per ml, given an absorbance change per minute. Also how to calculate the specific activity given the protein concentration.
Views: 2906 Gus Cameron

01:02
How can you use light and color to determine the concentration of a solution? Explore and quantify the relationship between concentration and absorbance of light with the Wireless Colorimeter and SPARKvue software. Apply the relationship to determine the concentration of an unknown solution. Learn more at https://www.pasco.com/prodCatalog/PS/PS-3215_wireless-colorimeter-and-turbidity-sensor/index.cfm
Views: 414 PASCOshorts

15:11
Lecture 15: Steady state concentration, dosage regimens, loading dose, continuous infusions, and maintenance dose. These are lectures I gave on pharmacology and pharmacokinetics at University of California - Irvine School of Medicine. Give a thumbs up and leave a comment. More to come thanks. View the rest of my pharmacology videos below: (1) Pharmacokinetics & ADME: http://youtu.be/CMRZqdrkCZw DRUG ABSORPTION Videos: (2) Drug Absorption Overview: http://youtu.be/eya9jR3v7i8 (3) Bioavailability: http://youtu.be/rv2Rpdi7OHM DRUG DISTRIBUTION Videos: (4) Drug Distribution Overview: http://youtu.be/DH2WGUd7MBs (5) Volume of Distribution: http://youtu.be/B63sqUfvFQQ ------------------ DRUG METABOLISM Videos: (6) First Pass Metabolism: http://youtu.be/5AB8WkCbz4k (7) Phase I Metabolism: http://youtu.be/GGLddVpVg9M (8) Phase II Metabolism: http://youtu.be/iIWAUo05GFE (9) First Order and Zero Order Kinetics: http://youtu.be/XEotDfKhNTw (10) Drug Half-life: http://youtu.be/eTqPsqnbwoc (11) First-order elimination rate constant and half-life-details: http://youtu.be/De9999Jj-5Q ------------------------------------------ DRUG ELIMINATION / EXCRETION (12) Drug Clearance: http://youtu.be/csywV3MYHDg (13) Renal Excretion of Drugs: http://youtu.be/8c3gqI6R-Vw (14) Ion Trapping: [Note Yet Posted] (15) Dosage Regimens: https://youtu.be/3V6ktRZE7jg --------------------------------------------------------------------- Factors That Affect Drug Metabolism: (16) Enzyme Induction: http://youtu.be/Dtbkc8F_ff0 (17) Competitive Inhibition Overview: http://youtu.be/iNIxMuHuL3w (18) Competitive Inhibition of Statins: http://youtu.be/Lt1-mjMFniE (19) Acetaminophen toxicity (Clinical Correlate): https://youtu.be/F9i8lLRty3o (20) Pharmacogenomics Overview: http://youtu.be/3vZxbX5P9TU (21) Slow Acetylators - Pharmacogenomics: [not yet posted] Help us caption & translate this video!
Views: 1934 Areo Saffarzadeh

02:03
How to find the order of a reactant using rate against concentration graphs
Views: 182 Stuart Tweedale

06:34
A presentation that will show you how to calculate the rate of a reaction from experimental data.
Views: 17949 Paul Scott

06:14
This is a chemistry tutorial that covers dilution problems, including examples of how to calculate the new concentration of a diluted solution, and how to calculate the volume of a concentrated solution required create a new concentration of a specified volume. https://www.thechemistrysolution.com
Views: 388943 TheChemistrySolution

15:36
Example for a first order reaction - calculating the growth of a bacterial culture
Views: 37366 Peter Klappa

13:28
This video is about the AP Chemistry Investigation #1. Using Beer-Lambert Law: What Is the Relationship Between the Concentration of a Solution and the Amount of Transmitted Light Through the Solution? In this video you will learn more about the Beer-Lambert law and its application. Moreover, you will learn how to find the molar absorptivity (epsilon) of a compound and how to determine the concentration of an unknown concentrated solution containing the same compound. You will also learn the relationship between the Absorbance (A), Transmittance (T) and percent Transmittance (%T). Students studying Chemistry at different levels could highly benefit from this video.
Views: 3493 Ali Hayek

37:53
Review of the Principles behind the use of the Spectrophotometer in determining the concentration of solutes in solutions. This Lecture makes reference to Beer's Laws (including % Transmittance of Light vs Concentration and Light Absorbance vs Concentration), precision, accuracy, a Blank, monochromatic light, wavelength, Construction of a Graph using Known Standards, and the determination of an Unknown. Check-out professor fink's web-site or additional resources in Biology, Anatomy, Physiology & Pharmacology: www.professorfink.com Down-loadable e-Books of the Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore at: https://wlac.redshelf.com/ “Hard Copy” Lecture Outlines can be purchased from the WLAC Bookstore at: http://onlinestore.wlac.edu/fink.asp
Views: 24198 professorfink

11:58
This video works through the concept of concentration by using a graph and slope of the line of best fit to construct the concept. Molarity is defined as a ratio of the moles of solute to the liters of solution and here we use three solutions of varying volume from the same stock solution to look into all of the relevant details that support this idea.
Views: 1615 Scott Milam

04:49
Views: 3044 RSFC Chemistry

13:27
Overview of First Order Elimination & Zero Order Elimination (updated video). View the rest of my pharmacology videos in order below: (1) Pharmacokinetics & ADME: http://youtu.be/CMRZqdrkCZw DRUG ABSORPTION Videos: (2) Drug Absorption Overview: http://youtu.be/eya9jR3v7i8 (3) Bioavailability: http://youtu.be/rv2Rpdi7OHM DRUG DISTRIBUTION Videos: (4) Drug Distribution Overview: http://youtu.be/DH2WGUd7MBs (5) Volume of Distribution: http://youtu.be/B63sqUfvFQQ ------------------ DRUG METABOLISM Videos: (6) First Pass Metabolism: http://youtu.be/5AB8WkCbz4k (7) Phase I Metabolism: http://youtu.be/GGLddVpVg9M (8) Phase II Metabolism: http://youtu.be/iIWAUo05GFE (9) First Order and Zero Order Kinetics: http://youtu.be/XEotDfKhNTw (10) Drug Half-life: http://youtu.be/eTqPsqnbwoc (11) First-order elimination rate constant and half-life-details: http://youtu.be/De9999Jj-5Q ------------------------------------------ DRUG ELIMINATION / EXCRETION (12) Drug Clearance: http://youtu.be/csywV3MYHDg (13) Renal Excretion of Drugs: http://youtu.be/8c3gqI6R-Vw (14) Ion Trapping: [not yet posted] (15) Dosage Regimens: [not yet posted] --------------------------------------------------------------------- Factors That Affect Drug Metabolism: (16) Enzyme Induction: http://youtu.be/Dtbkc8F_ff0 (17) Competitive Inhibition Overview: http://youtu.be/iNIxMuHuL3w (18) Competitive Inhibition of Statins: http://youtu.be/Lt1-mjMFniE (19) Acetaminophen toxicity (Clinical Correlate): [Not yet posted] (20) Pharmacogenomics Overview: http://youtu.be/3vZxbX5P9TU (21) Slow Acetylators - Pharmacogenomics: [not yet posted] Help us caption & translate this video! http://amara.org/v/B5Ev/
Views: 182523 Areo Saffarzadeh

41:14
Exp. 20 - Spectrophotometric Analysis: Determination of the Equilibrium Constant for a Reaction
Views: 11331 Michael Janusa

05:24
Dr. Cheryl Burrell explains absorbance curves. NMPTA13109
Views: 5179 Forsyth Tech CTL

02:15
Pharmacology math tutorial for quick exam review. For more tutorials, see our pharm playlist at: http://www.youtube.com/playlist?list=PLIPkjUWpiR2Ww8tUxJnhuJ8z8X-yQSuB Please SUBSCRIBE: More cool stuff coming as we get more Hippo Helpers! Visit http://www.helphippo.com for more videos and flashcards.
Views: 87859 HelpHippo