OCR B (Salters) AS level Chemistry UNIT 2 – F332 Elements from the sea Halogens and Halides (group 7 chemistry) * Halogen is the elemental molecule‚ eg/ Cl₂‚ Br₂ * Halide is in a compound‚ eg/ KBr‚ KCl | Fluorine | Chlorine | Bromine | Iodine | Appearance at room temp | Pale yellow gas | Green gas | Dark red volatile liquid | Shiny black solid – sublimes to purple gas | Halide | Colour precipitate with silver nitrate | KCl | White | KBr | Cream | KI | Pale Yellow |
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Amanda Jornd Experiment 7- Synthesis and Reactivity of tert-Butyl Chloride Via an SN1 Reaction Introduction/Background: Alkyl halides are compounds in which a halogen atom replaces a hydrogen atom of an alkane. Alkyl halides are classified as primary‚ secondary or tertiary depending on the number of alkyl substituents directly attached to the carbon attached to the halogen atom. The purpose of this lab was to properly prepare t-butyl chloride from t-butyl-alcohol in a concentrated hydrochloric
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Reminder: All post labs need to be 1- typed (not handwritten) ‚ 2- original (not copied from a classmate)‚ 3- answered using complete statements and 4- turned in at the beginning of the lab. Post-lab questions for Topic 5 – Enzymes Name: Date: Group: T W R Formation and Detection of Benzoquinone Table 1. Formation and Detection of Benzoquinone: Record Absorbance Time 2A-Potato extract + cathecol 2B- Potato extract + water 2C- Catechol + water After 10 min 1- What were the substrate
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LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Name: Instructor: Date: Enzyme Activity cheryl yelton November 30‚ 2014 Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 40 °C (104 °F) 3. Sucrase activity increases with increasing sucrose concentration. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced 2.
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DIVISION OF CHEMISTRY :MODULE: GENERAL CHEMISTRY (CHY2021) TUTORIAL # 2 DATE: September 2013 1. Define the following terms: mass number‚ atomic number and the atomic mass unit (amu). 2. With the help of The Periodic Table‚ complete the table below. Symbol Atomic # Proton # Neutron # # of Electrons Mass Number Charge Ar 19 31 17 18 35 20 18 3+ 40 3. In your own words‚ explain Thomson’s and Rutherford’s contribution to the atomic theory. Give sketches to substantiate your answer. 4. Explain
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Candace McDaniel B A 421 Instructor: WILLIAM GARDNER Due: October 6‚2013 Activity ID Predecessor Duration Number of People needed per week A - 3 7 B - 2 9 C - 2 12 D - 2 6 E B 2 11 F C 6 5 G D 3 5 H E‚ F 3 2 Table 2: Details on an IT Project The resource allocation for each activity for each week and the total weekly resource assignments are show in Figure 1‚ which is a Gantt chart along with a histogram. Now‚ examine Figure 1 closely. Using the concept of resource leveling
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"Project No:"‚ enter the client’s project number (from cover page 1). This number is required on every page of the report. 2. After "METHOD"‚ enter the analytical method used. (e.g.‚ EPA 8260‚ or EPA method 8021). 3. After "REPORTING UNIT"‚ enter the appropriate reporting unit. The units ug/L for water samples and ug/Kg for soil samples are recommended for volatile analyses. The units mg/L and mg/Kg are recommended for TPH/semi-volatile analyses. 4. After "DATE ANALYZED"‚ enter the date on which
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13! (1 0.85)0 (0.85)130 (1 0.85)1 (0.85)131 0! (13 0)! 1! (13 1)! =0 . 1 2+ 0 09 . 2 7 7 =4 0.39= 839.83% Thus‚ the probability that the engineer incorrectly passes a day’s production as acceptable if only 85% of the day’s Blu-ray players actually conform to specification is 39.83%. (b) What is the probability that the engineer
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5. Experimental Setup of the SRM Drive using Matlab Simulink The experimental setup is shown in Figures 5 and 6. Shows the GA-PID and ACO-PID controllers for a 3-phase 60KW SRM motor which are implemented & simulated by using Matlab-Simulink software program. Motor parameters used for simulation are given in Table 1. Tables 2 and 3 shows the GA-PID and ACO-PID controller’s parameters. the response of Kp‚ Ki and Kd parameters are summarized on table 4 which shows that the proportional controller
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been continuously reinforced for putting in his money. One morning‚ Steve puts in his money but does not receive his coffee. Therefore‚ Steve stops putting money in the vending machine. This is an example of which process in operant conditioning? (7)
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