TOUR OF SOIL CHEMISTRY LABS (09/22/07)
|
|
|
- Toby Richards
- 5 years ago
- Views:
Transcription
1 Department of Crop and Soil Sciences Commemorating Our Centennial, TOUR OF SOIL CHEMISTRY LABS (09/22/07)
2 WELCOME TO THE TOUR OF SOIL CHEMISTRY LABS
3 Instrument: Lachat QuikChem FIA Analyzer Principle: Analysis is based on reacting sample with reagent to form color complex which absorbs light at a specific wavelength. The absorbance of the reaction product is directly proportional to the concentration of the analyte in the sample. Volts Capabilities: Time [sec] Two sample processing modules (channels) configured to analyze silica, iron, aluminum, nitrate, nitrite, ammonia, total Kjehldahl nitrogen (TKN), total dissolved nitrogen, ortho-phosphate, total dissolved phosphorus, molybdenum. Justine Cook, MS Candidate
![The peak area counts are proportional to concentration of carbon in sample 0% Input Signal 0 25% 10 Time [min] Capabilities:](/docs-images/84/89108044/images/4-1.jpg "Analysis of total carbon (TC), total organic carbon (TOC), inorganic carbon (IC), dissolved organic carbon (DOC), purgeable")
4 Instrument: Shimadzu SSM-5000A and TOC-5000A Analyzer Principle: The sample is combusted or decomposed to CO 2. and detected in a non-dispersive infrared gas analyzer (NDIR). The peak area counts are proportional to concentration of carbon in sample 0% Input Signal 0 25% 10 Time [min] Capabilities: Analysis of total carbon (TC), total organic carbon (TOC), inorganic carbon (IC), dissolved organic carbon (DOC), purgeable organic carbon (POC), and non-purgeable organic carbon (NPOC). Kulbhushan Grover, PhD Candidate
5 Instrument: Dionex DX 500 Ion chromatograph (IC) Principle: Dionex DX 500 is a liquid chromatograph where charged species are separated by selective distributions in an electrolytic mobile phase and a stationary phase with weak ionic sites. Detection is performed by a conductivity detector the greater the concentration of ions the higher the conductivity of the solution. µs Retention Time [min] Capabilities: Rapid, sequential measurements of halides (Br -, Cl - and F - ), oxides (NO 2-, NO 3-, PO 4 3-, SO 3 2- and SO 4 2- ) and alkali metal and alkaline earth cations. Dr. Ephraim Govere (Manager)
![µv Time [min] Capabilities: Varian CP 3800 is equipped with flame ionization detector (FID), a selective and mass flow dependent detector for most organic compounds, specifically hydrocarbons, an](/docs-images/84/89108044/images/6-1.jpg "electron capture detector (ECD) for a selective and concentration dependent detector for halides, nitrates, nitriles, peroxides, anhydrides, organometallics, and a thermal conductivity detector (TCD)")
6 Instrument: Varian CP-3800 Gas Chromatograph Principle: A portion of the sample is injected into a gas chromatograph (GC) and compounds in the sample are moved through the column by the carrier gas. They travel through the column at different rates depending on differences in partition coefficients between the mobile and stationary phases and are determined by detector and integrator. µv Time [min] Capabilities: Varian CP 3800 is equipped with flame ionization detector (FID), a selective and mass flow dependent detector for most organic compounds, specifically hydrocarbons, an electron capture detector (ECD) for a selective and concentration dependent detector for halides, nitrates, nitriles, peroxides, anhydrides, organometallics, and a thermal conductivity detector (TCD) a nonselective detector and concentration dependent detector for organic and inorganic compounds. Marshall McDaniel PhD Candidate
7 Instrument: INNOVA 1412A Gas Analyzer Principle: Optical radiation, from infrared-source, is used to excite a gas molecule. The sample absorbs some of this radiation resulting in an increase in the internal energy. The pressure changes that occur upon periodic or pulsed sample heating can be detected by using a microphone to monitor the acoustic wave. Capabilities: Highly accurate, reliable and stable quantitative carbon dioxide (CO 2 ), nitrous oxide (N 2 O) ammonia (NH 3 ), methane (CH 4 ), volatile organic carbons (VOC) and water (H 2 O) vapour monitoring system. Capable of measuring almost any gas which absorbs infrared light. Marshall McDaniel, PhD Candidate
8 Instrument: LICOR LI-7000 CO 2 /H 2 O Analyzer Peak Area Units Principle: The LI-7000 is a differential, non-dispersive, infrared (NDIR) gas analyzer. Measurements are based on the difference in absorption of infrared (IR) radiation passing through the reference cell of known CO 2 or H 2 O concentration and the sample cell of unknown concentration. The radiation at the detectors is measured in both cells and used to compute absorption. Time [sec] Capabilities: High performance, dual cell analyzer for CO 2 and H 2 O in the same gas stream. Emad Aboukila, PhD Candidate
9 Current (A) Instrument: Principle: Voltammeter - Metrohm 797 VA Computrace Current-Potential measurements from redox reactions are made at a working electrode for determination of organic compounds or trace metals. Cu peaks 3.00u 2.50u 2.00u I (A) 1.50u 1.00u 500n 0 Capabilities: Mercury Electrode -200m -150m -100m -50.0m m 100m Potential (V) Analysis of organic compounds and trace metal with a high degree of sensitivity (i.e. 50 ppt Cu) and with the additional capability to differentiate between various oxidation states and free and non-free ions. Nadia Martínez-Villegas, PhD Candidate U (V)
10 WELL DONE!!! Emad, Marshall, Nadia, Justine, Kulbhushan
11 Thank you Alumni, graduate students, & Dept Head for making the tour a success!!
Gas Chromatography (GC)! Environmental Organic Chemistry CEE-PUBH Analysis Topic 5
Gas Chromatography (GC)! Environmental Organic Chemistry CEE-PUBH 5730-6730 Analysis Topic 5 Chromatography! Group of separation techniques based on partitioning (mobile phase/stationary phase). Two immiscible
SOIL RESEARCH CLUSTER LABORATORY (SRCL) Department of Ecosystem Science & Management
SOIL RESEARCH CLUSTER LABORATORY (SRCL) Department of Ecosystem Science & Management Lab Rooms: 430, 439, 461, 462 & 470 Agricultural Sciences & Industries Building WELCOME TO THE ANALYTICAL INSTRUMENTS
Gas Chromatography. Chromatography Laboratory Course. Dr. Christian Jungnickel Chromatography Course GC September 2005
Gas Chromatography Chromatography Laboratory Course The laboratory course experiments General Aim: Gain general experience using a GC Constant Injection technique Temperature variations Qualitative and
Chem 321 Name Answer Key D. Miller
1. For a reversed-phase chromatography experiment, it is noted that the retention time of an analyte decreases as the percent of acetonitrile (CH 3 CN) increases in a CH 3 CN/H 2 O mobile phase. Explain
Atmospheric Analysis Gases. Sampling and analysis of gaseous compounds
Atmospheric Analysis Gases Sampling and analysis of gaseous compounds Introduction - External environment (ambient air) ; global warming, acid rain, introduction of pollutants, etc - Internal environment
Chromatography. Gas Chromatography
Chromatography Chromatography is essentially the separation of a mixture into its component parts for qualitative and quantitative analysis. The basis of separation is the partitioning of the analyte mixture
Analytical techniques: Environmental samples. Lecture 2 Universidade do Algarve
Analytical techniques: Environmental samples Lecture 2 Universidade do Algarve Terms, definitions & applications Difference between technique and method: Analytical technique: Fundamental scientific application
GAS CHROMATOGRAPHY. Mobile phase is a gas! Stationary phase could be anything but a gas
GAS CHROMATOGRAPHY Mobile phase is a gas! Stationary phase could be anything but a gas Gas Chromatography (GC) GC is currently one of the most popular methods for separating and analyzing compounds. This
White Paper. Overview: NDIR Definition:
Title: NDIR Technology Overview, Compliance, and Comparison to Other Generally Available Gas Measurement Technologies TSN Number: 06 File:\\MII- SRV1\Metron\Bridge_Analyzers\Customer_Service_Documentation\White_Papers\06
CH 2252 Instrumental Methods of Analysis Unit V Gas Chromatography. M. Subramanian
CH 2252 Instrumental Methods of Analysis Unit V Gas Chromatography M. Subramanian Assistant Professor Department of Chemical Engineering Sri Sivasubramaniya Nadar College of Engineering Kalavakkam 603
Harris: Quantitative Chemical Analysis, Eight Edition CHAPTER 23: GAS CHROMATOGRAPHY
Harris: Quantitative Chemical Analysis, Eight Edition CHAPTER 23: GAS CHROMATOGRAPHY Chapter 23. Gas Chromatography What did they eat in the year 1,000? GC of Cholesterol and other lipids extracted from
2401 Gas (liquid) Chromatography
2401 Gas (liquid) Chromatography Chromatography Scheme Gas chromatography - specifically gas-liquid chromatography - involves a sample being vaporized and injected onto the head of the chromatographic
VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur
VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur 603 203 DEPARTMENT OF ELECTRONICS AND INSTRUMENTATION ENGINEERING QUESTION BANK V SEMESTER EI6501 Analytical Instruments Regulation 2013 Academic
Experiment 6 Simple and Fractional Distillation
Experiment 6 Simple and Fractional Distillation Vapor Pressure vs Temperature of Water Vapor Pressure vs Temperature of Water 25 Vapor Pressure vs Temperature of Water 25 Vapor Pressure (kpa) (kpa) 2 2
Gas Chromatography. Rosa Yu, David Reckhow CEE772 Instrumental Methods in Environmental Analysis CEE 772 #16 2
Print version Gas Chromatography Rosa Yu, David Reckhow CEE772 Instrumental Methods in Environmental Analysis CEE 772 #16 1 Contents The primary components to a GC system 1. Carrier Gas System (including
Chapter 31 Gas Chromatography. Carrier Gas System
Chapter 31 Gas Chromatography GAS-LIQUID CHROMATOGRAPHY In gas chromatography, the components of a vaporized sample are fractionated as a consequence of being partitioned between a mobile gaseous phase
Chemical Reactions. Chemical changes are occurring around us all the time
Chemical changes are occurring around us all the time Food cooking Fuel being burned in a car s engine Oxygen being used in the human body The starting materials are called reactants The ending materials
Chromatographic Methods of Analysis Section: 5 Gas Chromatography (GC) Prof. Tarek A. Fayed
Chromatographic Methods of Analysis Section: 5 Gas Chromatography (GC) Prof. Tarek A. Fayed Gas Chromatography (GC) In gas chromatography, the sample is vaporized and injected onto the head of a chromatographic
Unit IV: Chemical Equations & Stoichiometry
Unit IV: Chemical Equations & Stoichiometry A. The chemical equation B. Types of chemical reactions A. Activity series of metals B. Solubility rules C. Rules for writing and balancing equations D. Calculations
Continuous Flow Analysis Methods David Davey University of South Australia. 21 February
Continuous Flow Analysis Methods David Davey University of South Australia 21 February 2012 1 Flow Analysis Methods 1950s-60s Segmented Flow Methods Clinical Analysis Skeggs 1970s Flow Injection Analysis
Introduction to Pharmaceutical Chemical Analysis
Introduction to Pharmaceutical Chemical Analysis Hansen, Steen ISBN-13: 9780470661222 Table of Contents Preface xv 1 Introduction to Pharmaceutical Analysis 1 1.1 Applications and Definitions 1 1.2 The
Types of Reactions: Reactions
1 Reactions On the A.P. Test there will be one question (question #4) that will say: Give the formulas to show the reactants and the products for the following chemical reactions. Each occurs in aqueous
Luminescence transitions. Fluorescence spectroscopy
Luminescence transitions Fluorescence spectroscopy Advantages: High sensitivity (single molecule detection!) Measuring increment in signal against a dark (zero) background Emission is proportional to excitation
Types of Reactions: Reactions
1 Reactions On the A.P. Test there will be one question (question #4) that will say: Give the formulas to show the reactants and the products for the following chemical reactions. Each occurs in aqueous
Course goals: Course goals: Lecture 1 A brief introduction to chromatography. AM Quality parameters and optimization in Chromatography
Emqal module: M0925 - Quality parameters and optimization in is a separation technique used for quantification of mixtures of analytes Svein.mjos@kj.uib.no Exercises and lectures can be found at www.chrombox.org/emq
CHEMISTRY: A Study of Matter
Review Sheet: Unit 6 Name KEY I. Fill in the blanks with the most appropriate term: Common names of substances like milk of magnesia or lime usually give no information about the chemical composition of
Far UV Absorbance Detector
Far UV Absorbance Detector Theory Most organic and inorganic species absorb strongly in the far UV. Notable exceptions are the inert gases, helium and nitrogen which absorb very weakly in this region.
Chemistry 1-2E Semester I Study Guide
Chemistry 1-2E Semester I Study Guide Name Hour Chapter 1 1. Define the following terms. Matter Mass Law of Conservation of Mass 2. Define and give 2 examples of the following: Pure substance Element Compound
( ) 4Fe( l) + 3CO 2 ( g)
Oxidation-Reduction (Redox) Reactions The terms oxidation and reduction may sound unfamiliar, but we see the results of these processes often in our daily lives. The corrosion of metal structures and monuments,
Part 01 - Notes: Reactions & Classification
Objectives: Identify, define, and explain: combination reaction, synthesis reaction, decomposition reaction, single replacement reaction, double replacement reaction, combustion reaction, rapid oxidation,
Honors text: Ch 10 & 12 Unit 06 Notes: Balancing Chemical Equations
Notes: Balancing Chemical Equations Effects of chemical reactions: Chemical reactions rearrange atoms in the reactants to form new products. The identities and properties of the products are completely
High Pressure/Performance Liquid Chromatography (HPLC)
High Pressure/Performance Liquid Chromatography (HPLC) High Performance Liquid Chromatography (HPLC) is a form of column chromatography that pumps a sample mixture or analyte in a solvent (known as the
How many hydrogen atoms are there in the empirical formula of propene, C 3 H 6? How many neutrons are there in one atom of 24 Mg?
1 A 2 B 3 C The atomic number of Na is 11. How many electrons are there in a sodium ion, Na +? How many hydrogen atoms are there in the empirical formula of propene, C 3 H 6? What is the mass in grams
Volatile organic compounds (VOCs):
Volatile organic compounds (VOCs): Organic chemicals with a high vapour pressure at room temperature. High vapour pressure results from a low boiling point. The World Health Organization (WHO) defined
PRINCIPLES AND APPLICATION OF CHROMATOGRAPHY. Dr. P. Jayachandra Reddy Mpharm PhD Principal & professor KTPC
PRINCIPLES AND APPLICATION OF CHROMATOGRAPHY Dr. P. Jayachandra Reddy Mpharm PhD Principal & professor KTPC CHROMATOGRAPHY Laboratory technique for the Separation of mixtures Chroma -"color" and graphein
Instrumental Analysis
Chem 454 Name: Instrumental Analysis Exam I February 5, 1999 80 possible points 1] 5 points Which of the following samples would be suitable for analysis by a calibration curve technique using a potentiometric
Chemistry. Student Number. Mark / 64. Final Examination Preliminary Course General Instructions. Total Marks 64
Student Number Mark / 64 Chemistry Final Examination Preliminary Course 2003 General Instructions Reading time 5 minutes Working time 120 minutes Write using black or blue pen Draw diagrams using pencil
BELPAHAR ENGLISH MEDIUM SCHOOL. Pre-Final Examination CLASS X SUB CHEMISTRY FM :80 TIME : 1 1/2 hours
BELPAHAR ENGLISH MEDIUM SCHOOL Pre-Final Examination- 2008 CLASS X SUB CHEMISTRY FM :80 TIME : 1 1/2 hours Answers to this Paper must be written on the paper provided separately. You will not be allowed
Chemical Oxidation Oxidizing agents
Chemical Oxidation CENG 4710 Environmental Control Chemical oxidation is used to detoxify waste by adding an oxidizing agent to chemically transform waste compounds. It is capable of destroying a wide
Chapter 6. Chemical Reactions. Sodium reacts violently with bromine to form sodium bromide.
Chapter 6 Chemical Reactions Sodium reacts violently with bromine to form sodium bromide. Evidence of Chemical Reactions Chemical Equations Reactants Products Reactant(s): Substance(s) present before the
Notes: Balancing Chemical Equations
Notes: Balancing Chemical Equations Effects of chemical reactions: Chemical reactions rearrange atoms in the reactants to form new products. The identities and properties of the products are completely
Final Exam Review Questions You will be given a Periodic Table, Activity Series, and a Common Ions Chart CP CHEMISTRY
Final Exam Review Questions You will be given a Periodic Table, Activity Series, and a Common Ions Chart CP CHEMISTRY Part A True-False State whether each statement is true or false. If false, correct
CHEMICAL REACTIONS. The process by which one or more substances are changed into one or more different substances
CHEMICAL REACTIONS The process by which one or more substances are changed into one or more different substances Equations Reactions are represented by a chemical equation Reactants Products Must have
Gas chromatography. Advantages of GC. Disadvantages of GC
Advantages of GC Gas chromatography Fast analysis, typically minutes Effi cient, providing high resolution Sensitive, easily detecting ppm and often ppb Nondestructive, making possible on - line coupling;
CHEMISTRY HIGHER LEVEL
*P15* PRE-LEAVING CERTIFICATE EXAMINATION, 2008 CHEMISTRY HIGHER LEVEL TIME: 3 HOURS 400 MARKS Answer eight questions in all These must include at least two questions from Section A All questions carry
Introduction to Gas Chromatography
Introduction to Gas Chromatography 31-1 Objectives To know what is chromatography To understand the mechanism of compound separation To know the basic of gas chromatography system 31-2 Chromatography Definition
AUTOMATED ONLINE IDENTIFICATION AND MONITORING OF IMPURITIES IN GASES
JPACSM 127 AUTOMATED ONLINE IDENTIFICATION AND MONITORING OF IMPURITIES IN GASES Trace Analytical Inc. Menlo Park, CA ABSTRACT GC based gas analyzers with Reduction Gas Detector (RGD) and Flame Ionization
Bonding Mrs. Pugliese. Name March 02, 2011
Bonding Mrs. Pugliese Name March 02, 2011 1. Atoms of which element have the greatest tendency to gain electrons? 1. bromine 3. fluorine 2. chlorine 4. iodine 2. Which polyatomic ion contains the greatest
GC Instruments. GC Instruments - Sample Introduction
GC Instruments 1 Fairly simple instrumentation Maintaining constant average pressure is important! Pressure controls flow rate T influences retention (k ) Flow rate monitoring Changing flow rate changes
5. What is the name of the compound PbO? 6. What is the name of HCl(aq)?
1. Which idea of John Dalton is no longer considered part of the modern view of atoms? (A) Atoms are extremely small. (B) Atoms of the same element have identical masses. (C) Atoms combine in simple whole
2. Relative molecular mass, M r - The relative molecular mass of a molecule is the average mass of the one molecule when compared with
Chapter 3: Chemical Formulae and Equations 1. Relative atomic mass, A r - The relative atomic mass of an element is the average mass of one atom of an element when compared with mass of an atom of carbon-12
Final Review Chemistry 101 You should know density, specific heat, dilution, ideal gas, and light equations.
You should know density, specific heat, dilution, ideal gas, and light equations. 1) Which of the following elements is a transition metal? a) V b) Mg c) Si d) Br 2) Convert 0.0825 kg into milligrams.
Chemical Equations and Chemical Reactions
Chemical Equations Chemical Equations and Chemical Reactions Chemical equations are concise representations of chemical reactions. Chemical Equations Symbols Used in Chemical Equations The formulas of
Properties of Compounds
Chapter 6. Properties of Compounds Comparing properties of elements and compounds Compounds are formed when elements combine together in fixed proportions. The compound formed will often have properties
Chapter 4 Chemical Formulas, Reactions, Redox and Solutions
Terms to Know: Solubility Solute Solvent Solution Chapter 4 the amount of substance that dissolves in a given volume of solvent at a given temperature. a substance dissolved in a liquid to form a solution
Unit 8 Chemical Reactions- Funsheets
Part A- Balancing Equations and Types of Reactions Balance AND identify the following reactions: Unit 8 Chemical Reactions- Funsheets 1) Mg + Zn(NO 3) 2 Zn Mg(NO 3) 2 2) Ba + AgNO 3 Ag + Ba(NO 3) 2 3)
Test ID B 1. C 2. C 3. E 4. A 5. E 6. B 7. C 8. D 9. E 10. E 11. E 12. B 13. D 14. B 15. A 16. C 17. B 18. E 19. D 20. D 21. B
Multiple Choice Answers Test ID A 1. D 2. D 3. C 4. A 5. D 6. E 7. B 8. A 9. B 10. E 11. B 12. D 13. B 14. D 15. C 16. E 17. B 18. D 19. B 20. A 21. A Test ID B 1. C 2. C 3. E 4. A 5. E 6. B 7. C 8. D
3. Chemical industry. Because of their modular design, the instruments in the TOC-L series can be equipped for any possible measurement
3. Chemical industry The most commonly used compound in the chemical industry is water not only as a solvent in processing, but also as an energy carrier in the cooling or heating cycle. As vast amounts
Chemical Equations. Chemical Reactions. The Hindenburg Reaction 5/25/11
Chemical Reactions CHM 1032C Chemical Equations Chemical change involves a reorganization of the atoms in one or more substances. The Hindenburg Reaction Reactants are on left, products to the right. Arrow
Chemistry Semester One Exam Review
Chemistry Semester One Exam Review Name: 1. Compare physical and chemical changes in matter. 2. State the law on conservation of mass. 3. On which type of mixture(s) does the Tyndall Effect scatter light?
Water Sciences Laboratory Method Price List
Nebraska Water Center, a part of the Robert B. Daugherty Water for Food Institute at the University of Nebraska e: dsnow1@unl.edu p:1 402.472.7539 f: 1 402.472.9599 c: 1 402.304.3748 Water Sciences Laboratory
Intro to Reactions/ Balancing Equations
Intro to Reactions/ Balancing Equations Chemical Reactions Chemical reactions involve change. Evidence of a chemical reaction could include the following Evolution of heat, light, and/or sound Production
atomic absorption spectroscopy general can be portable and used in-situ preserves sample simpler and less expensive
Chapter 9: End-of-Chapter Solutions 1. The following comparison provides general trends, but both atomic absorption spectroscopy (AAS) and atomic absorption spectroscopy (AES) will have analyte-specific
Semester 1 Exam Review
Semester 1 Exam Review 1. Compare physical and chemical changes in matter. Physical changes involve changing a substance s shape, texture, or size, not its chemical composition. Chemical changes result
c. K 2 CO 3 d. (NH 4 ) 2 SO 4 Answer c
Chem 130 Name Exam 2, Ch 4-6 July 7, 2016 100 Points Please follow the instructions for each section of the exam. Show your work on all mathematical problems. Provide answers with the correct units and
Chapter 27: Gas Chromatography
Chapter 27: Gas Chromatography Gas Chromatography Mobile phase (carrier gas): gas (He, N 2, H 2 ) - do not interact with analytes - only transport the analyte through the column Analyte: volatile liquid
Chem A Ch. 9 Practice Test
Name: Class: Date: Chem A Ch. 9 Practice Test Matching Match each item with the correct statement below. a. product d. balanced equation b. reactant e. skeleton equation c. chemical equation 1. a new substance
Chapter 6. Types of Chemical Reactions and Solution Stoichiometry
Chapter 6 Types of Chemical Reactions and Solution Stoichiometry Chapter 6 Table of Contents (6.1) (6.2) (6.3) (6.4) (6.5) (6.6) (6.7) (6.8) Water, the common solvent The nature of aqueous solutions: Strong
Student Name: Teacher: Date: District: NCGaston. Assessment: 9_12 Science Chemistry Exam 3. Description: Chemistry Mock Final Exam
Student Name: Teacher: Date: District: NCGaston Assessment: 9_12 Science Chemistry Exam 3 Description: Chemistry Mock Final Exam 2014-15 Form: 301 1. Shown below is a model of the structure of atom X.
Counting by mass: The Mole. Unit 8: Quantification of Chemical Reactions. Calculating molar mass. Particles. moles and mass. moles and particles
Unit 8: Quantification of Chemical Reactions Chapter 10: The mole Chapter 12: Stoichiometry Counting by mass: The Mole Chemists can t count individual atoms Use moles to determine amounts instead mole
1/31/2013 CHEMICAL EQUATIONS & REACTIONS NOTES. Write the formulas of the following compounds: 1. nickel (II) chloride. 2. copper (II) nitrate
CEMICAL EQUATIONS & REACTIONS NOTES Ionic compounds can form from metals Transition metals do not always follow the patterns that we discussed Can have more than one oxidation number () To identify the
Solubility Rules See also Table 4.1 in text and Appendix G in Lab Manual
Ch 4 Chemical Reactions Ionic Theory of Solutions - Ionic substances produce freely moving ions when dissolved in water, and the ions carry electric current. (S. Arrhenius, 1884) - An electrolyte is a
Test bank chapter (2)
Test bank chapter (2) Choose the correct answer NOTE: A periodic table is required to work many of the problems in this chapter. 1. Which of these elements is most likely to be a good conductor of electricity?
Sampling for Gases and Vapors
Sampling for Gases and Vapors EOH 466B Evaluating the Occupational Environment Spring 2008 Gases and Vapors Gases: don't exist in liquid state at STP e.g.: nitrous oxides, ozone, carbon monoxide Vapors:
CHEMISTRY HIGHER LEVEL
*P15* Pre-Leaving Certificate Examination, 2012 Triailscrúdú na hardteistiméireachta, 2012 CHEMISTRY HIGHER LEVEL TIME: 3 HOURS 400 MARKS Answer eight questions in all These must include at least two questions
Antimony leaching from contaminated soil under manganese- and iron-reducing conditions: column experiments
Environ. Chem. 2014, 11, 624-631 CSIRO 2014 Supplementary material Antimony leaching from contaminated soil under manganese- and iron-reducing conditions: column experiments Kerstin Hockmann, A,C Susan
Principles of Gas- Chromatography (GC)
Principles of Gas- Chromatography (GC) Mohammed N. Sabir January 2017 10-Jan-17 1 GC is a chromatographic technique utilizes gas as the mobile phase which is usually an inert gas (Hydrogen, Helium, Nitrogen
CHM 151 Practice Final Exam
CM 151 Practice Final Exam 1. ow many significant figures are there in the result of 5.52 divided by 3.745? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5 2. ow many significant figures are there in the answer when 9.021
Class III Wastewater Laboratory Analyst Examination Study Guide 2008
Class III Wastewater Laboratory Analyst Examination Study Guide 2008 Specific laboratory analyses included on Class III Exam: All Information and tests from Class I and Class II Plus the following - Biological
Training Coarse ECOPROBE 5 CHEMISTRY RS DYNAMICS
Training Coarse ECOPROBE 5 CHEMISTRY Contents Ecoprobe analytical principles Photoionization Infrared spectroscopy Oxygen measurement Pollutants Types and responses Head space New application of Ecoprobe
DEPARTMENT OF ELECTRONICS AND INSTRUMENTATION ENGINEERING SRM NAGAR, KATTANKULATHUR-603203 EI 2302 ANALYTICAL INSTRUMENTS QUESTION BANK UNIT I COLORIMETRY AND SPECTROPHOTOMETRY Part A 1. State Lambert
GAS CHROMATOGRAPHY (GC)
GAS CHROMATOGRAPHY (GC) Pre-Lab Questions Questions are to be answered before the beginning of the laboratory. The answers are due at the beginning of each experiment (the questions are for credit and
Partial Energy Level Diagrams
Partial Energy Level Diagrams 460 nm 323 nm 610 nm 330 nm 819 nm 404 nm 694 nm 671 nm 589 / 590 nm 767 / 769 nm Lithium Sodium Potassium Gas Mixtures Maximum Temperatures, C Air-Coal Gas 1825 Air-Propane
AP Chemistry Note Outline Chapter 4: Reactions and Reaction Stoichiometry:
AP Chemistry Note Outline Chapter 4: Reactions and Reaction Stoichiometry: Water as a solvent Strong and Weak Electrolytes Solution Concentrations How to Make up a solution Types of Reactions Introduction
Chromatography & instrumentation in Organic Chemistry
Chromatography & instrumentation in Organic Chemistry What is Chromatography? Chromatography is a technique for separating mixtures into their components in order to analyze, identify, purify, and/or quantify
Types of Chemical Reactions
Types of Chemical Reactions There are five types of chemical reactions: 1. Formation (combination) 2. Decomposition 3. Single Displacement 4. Double Displacement 5. Combustion 1 Formation (Combination)
Chemistry Final Exam Study Guide Fall Semester
Chemistry Final Exam Study Guide Fall Semester Name: Date: Class: Basics of Science (Ch 1) 1. Briefly describe what occurs in each step of the scientific method: 1. Problem/Question 2. Research 3. Hypothesis
CHAPTER 6 GAS CHROMATOGRAPHY
CHAPTER 6 GAS CHROMATOGRAPHY Expected Outcomes Explain the principles of gas chromatography Able to state the function of each components of GC instrumentation Able to state the applications of GC 6.1
CHAPTER 8 Ionic and Metallic Bonds
CHAPTER 8 Ionic and Metallic Bonds Shows the kind of atoms and number of atoms in a compound. MgCl 2 NaCl CaCO 3 Al 2 O 3 Ca 3 (PO 4 ) 2 Chemical Formulas Al: Cl: counting atoms AlCl 3 Pb: N: O: Pb(NO
b. Na. d. So. 1 A basketball has more mass than a golf ball because:
Chem I Semester Review All of the following are general characteristics of a substance in the liquid state except a. definite volume. c. not easily compressed. b. able to flow. d. definite shape. In the
Unit (2) Quantitative Chemistry
Unit (2) Quantitative Chemistry Chapter (1) :The mole & chemical equation Lesson (1) Mole and chemical equation Chemical equation: The chemical symbols and formulas of the reactants and products which
ISO 8245 INTERNATIONAL STANDARD. Water quality Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)
INTERNATIONAL STANDARD ISO 8245 Second edition 1999-03-01 Water quality Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC) Qualité de l'eau Lignes directrices
SCH4U Chemistry Review: Fundamentals
SCH4U Chemistry Review: Fundamentals Particle Theory of Matter Matter is anything that has mass and takes up space. Anything around us and in the entire universe can be classified as either matter or energy.
3. What is the energy (in J/photon) associated with a photon with a wavelength of 245 nm?
I. (40 points) A. (10 points) The following 3 questions are not related. There will be no partial credit given but you must show all work. (You MUST write units for your numerical answers. Answers without
Gas Chromatography. Vaporization of sample Gas-solid Physical absorption Gas-liquid Liquid immobilized on inert solid
Gas Chromatography Vaporization of sample Gas-solid Physical absorption Gas-liquid Liquid immobilized on inert solid Principles Instrumentation Applications 18-1 Retention Volumes Volumes rather than times
Chem 127, Final Exam December 13, 2002
I. (55 points) This part of the final corresponds to Exam I. It covers the material in Chapters 1, 2 and 3. A. (20 points) The following questions are NOT related to each other. 1. Express 1 part per million
SKALAR. your partner in chemistry automation. Formacs series Total Organic Carbon & Total Nitrogen Analyzers
SKALAR your partner in chemistry automation Formacs series Total Organic Carbon & Total Nitrogen Analyzers Skalar s Formacs HT TOC / TN Analyzer The Formacs HT TOC/TN analyzers provide fast, reliable analysis
Exam Style Questions
Calderglen High School Chemistry Department CfE Higher Chemistry Unit 1: Chemical Changes and Structure Exam Style Questions Page 2 1.1 Periodicity (25 marks) Page 6 1.2 Bonding and Structure part 1 (25
Balancing Equations Notes
. Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
Chapter 8 Chemical Reactions
Chapter 8 Chemical Reactions 8.1 Chemical Reactions Evidence of a Chemical Change Chemical reactions involve rearrangement and exchange of atoms to produce new molecules Remember: matter can neither be