Word list for technology subject Unit 1: Ways in to technology water tap | A faucet for drawing water from a pipe or cask | Vòi nước | Synthesizer | an electronic instrument that generates and modifies sounds electronically and can imitate a variety of other musical instruments | | Vocational | Training practical | | Unit2: Food and agriculture Reaper | Farm machine that gathers a food crop from the fields | Máy gieo hạt | Barbed wire | Strong wire with barbs at regular intervals
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Objective: Analyzing three of the fraction samples from the previous lab: “Separation, Extraction, Fractional Distillation & Gas Chromatography” to determine the contents purity Equations: Area of peak=1/2HxW % composition= (Area of peak/Total area of peak(s)) x 100 Properties: Diethyl ether 1,2-dimethoxy ethane Formula C4H10O3 ClCO(CH2)8COCl Melting Point −116.3 °C -58°C Boiling Point 62 - 64 °C 82 - 83°C Density 1.005 g/cm3 1.121 Physical
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CH 220C ORGANIC CHEMISTRY LABORATORY Spring, 2015 Section Page 1. General Information 2 2. Safety Information 2 3. Attendance 3 Make-Up Policy 3 4. Laboratory Protocol 3 Assigned Reading 3 Pre-Lab Quizzes 3 Lab Notebook 5 Chemicals 5 Due Dates for Reports 5 5. Orientation 5 In-Lab Information
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Argon was discovered by William Ramsay, an English chemist, in 1894. The name Argon originates from the Greek word ‘Argos’ meaning inactive. Argons symbol is Ar and it’s located in period 3, group 18 of the periodic table. It’s a noble gas. It has 18 electrons and protons, and 22 neutrons. Argons electron configuration is 1s22s22p63s23p6. Argon is a colorless, odorless gas present in the atmosphere. It’s known to not form true chemical compounds. It’s heavier than air, but less reactive than N2
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formula is stated below: 2 ZnO (l) + C → 2 Zn (l) + CO2 (g) Step 5: Evaporation The ore changes its state as gas and leave the impurities behind. Step 6: Further purification Either fractional distillation or Electrolytic refining is applied to concentrate the impure zinc. c. The whole procedure of two extractions are very similar. At the beginning of extraction, both ores are needed to be ground by crushing to get rid of gangue. In
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D. The electrons are found in the shells surrounding the nucleus 3. During the manufacture of ethanol, the ethanol is separated from the fermented mixture by A. Centrifugation B. Solvent extraction C. Fractional distillation D. Boiling 4. An element Y reacts with fluorine gas to form a solid of formula YF. The electronic configuration of Y could be A. 2:7 B. 2:8:8:1 C. 2:8:2 D. 2:8:3 5. Which of the
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Chemistry 129A Syllabus, Spring 2016 Instructor and Contact Information: Sammy Tamras: Lab Sections: MW 9:00-11:50; and 1:00-3:50; and TTh 1:00-3:50 Office: McLane 244 Office Hours: MW 4:00-5:00; and TTh 11:00-12:00, and by appointment E-Mail: stamras@csufresno.edu Lab Coordinator: Dr. Joseph Gandler; email: josephg@csufresno.edu; office: S 362; office hours: M-F 10:00-10:50. CHEM 129A Lab Sections: |MW |09:00-11:50 |S 370
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Typical Products and Uses of Titanium Due to Titanium’s amazing properties such as corrosion resistance, high strength-to-weight ratio, low density, high heat resistance, high fatigue resistance, high crack resistance and biocompatibility; it is widely used in various industries (Moiseyev, 2006). Titanium is often combined with other metals such as aluminum, vanadium, copper, iron, manganese and molybdenum to create alloys of improved grain size and hardness (Clifford, 1968). Titanium mill products:
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Nitrogen makes up 78% of the earth’s atmosphere while oxygen makes up 22% of the rest. Nitrogen is obtained from a process called fractional distillation. “Nitrogen is a non-metallic gas”. Nitrogen has the atomic number 7 and is an element with the letter N to label the substance within the periodic table. Nitrogen is colorless, odourless, and tasteless. This substance is acknowledged as a
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------------------------------------------------- FIFTH SEMESTER BAS 311 | Methods of Food Analysis | 2 0 3 4 | | TheoryUNIT – I Introduction to Food Analysis: Rules & Regulations of Food Analysis, Safety in Laboratory. Sampling and sampling techniques, sample preparation for analysis. Basic principles of spectroscopy: UV-VIS molecular absorption spectrometry, atomic absorption & emission spectrometry, fluorescence spectrometry, Atomic mass spectrometry, IR spectrometry.UNIT
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