Inorganic Chemistry 1. A subatomic particle with a single positive electrical charge is protons. 2. A subatomic particle with a single negative electrical charge is electrons. 3. A subatomic particle which is electrically neutral is neutrons. 4. The nucleus of an atom is made up of _protons_ and _neutrons. 5. The number of electrons forming a charge cloud around the nucleus is (pick one of the following) greater than; equal to; smaller than the number of protons in the nucleus of the atom.
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EXPERIMENT I Photoreduction of Benzophenone Introduction The study of chemical reactions‚ isomerizations and physical behavior that may occur under the influence of visible and/or ultraviolet light is called Photochemistry. The fundamental principles for understanding photochemical transformations are that light must be absorbed by a compound in order for a photochemical reaction to take place‚ and that for each photon of light absorbed by a chemical system only one molecule is activated for
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Chemotherapeutic Agents of Control: Introduction: Chemotherapeutic agents are chemical substances used to treat various forms of infectious diseases. The chemotherapeutic agent works by stopping the bacteria from reproducing. There are two different kinds of chemotherapeutic agents. The first kind is an antibiotic‚ which slow down the growth of microorganisms. The second kind of chemotherapeutic agent is synthetic drugs. Synthetic drugs are artificially made in a laboratory. Chemotherapy
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Data collection Quantitative Data Raw Data Table 1: Table showing the mass of the amount of unknown acid X measured in grams (±0.001g) Table 2: Table of reading of the burette initially filled with 25mL of 0.201moldm-3 sodium hydroxide (NaOH) to titrate 25mL (±0.03mL) of unknown acid X in mL (±0.05mL) after each titre. Reading on the burette initially filled with 25mL of 0.201moldm-3 NaOH (±0.05mL) First titre 21.3 Second titre 18.2 Third titre 15.2 Fourth titre 12.0 Qualitative
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ENG 4UI: ISU Essay Outline ----------------------- Introduction: All life and existence makes an unavoidable journey towards an ultimate end. Immortality is a mythical unattainable existence‚ barred by the presence of entropy. Mortality is a constant found in everything that was‚ is and will be. Hook:
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Title: Spectrophotometer and its function Name: Ooi Shu Chien Student ID: 00000014507 Objective: 1. To determine the wavelength of maximum absorption‚ Amax of bromophenol blue. 2. To construct a standard concentration curve for bromophenol blue. 3. To determine the concentration of the unknown bromophenol blue solutions. 4. To determine the concentration of two different solutes‚ bromophenol blue and methyl orange‚ in
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Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes. After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed
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SIMPLY SUPPORTED FLANGED BEAM DESIGN SIMPLY SUPPORTED FLANGED BEAM bf 1) Load Analysis - N= 1.35gk + 1.5qk 2) SFD and BMD - consider type of load hf h *min diameter bar provided is 12mm *min diameter link provided is 8mm d d = h – Cnom – Ølink – Øbar/2 Neutral Axis Lies in Flange Design as a rectangular section Size of beam (bf X d) Z = d (0.5+(0.25 – (k/1.134))1/2 0.95 d‚ use 0.95d as z value Asreq = M/0.87fykZ Provide main reinforcement Asmin = 0.26fctmbd/fyk
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cName: Nicholas Cassel Gen Chem 1210 23 March 2013 Blinded By the Light Abstract: In this experiment we were provided a cereal box spectrometer to observe the emission lines of noble gases and hydrogen. Based on the scale readings on the spectrometer and the Balmer-Rydberg formula‚ their wavelengths and percent error were able to be extrapolated. Based on the literature values‚ the cereal box spectrometer proved its value as a decently accurate spectrometer. Introduction: Every element
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Adol Condensation Introduction: This reaction is carried out by adding benzaldehyde and acetone into a flask. The product created is a 1‚5-diphenyl-1‚4-pentdiene-3-one‚ which includes two double bonds‚ and two benzyl ring functional groups. This is a dehydration reaction that occurs twice in order to form the diene. After obtaining the product‚ via vacuum filtration‚ it will be recrystallized and then analyzed for purity by determining both products’ melting point. The two products will be
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