Gerona‚ Evelyn Chemical Reactions Experiment No. 7 Date Performed: Feb. 17‚ 2014 Date Submitted: Feb. 24‚ 2014 Mrs. Vitancol I. Theoretical Framework A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically‚ chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms‚ with no change to the nuclei (no change to the elements present)‚ and can often
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Irritant‚ Flammable 2-chlorobutane 92.57 68 -140 0.870 Flammable‚ Irritant 2-bromobutane 137.02 91 -112 1.250 Flammable‚ Irritant Ethyl Alcohol 46.07 79 -114 0.789 Flammable‚ Irritant Silver Nitrate 169.87 444 212 4.350 irritant Sodium Iodide 149.89 1300 651 3.667 irritant water 18.02 100 at 1atm 0 at 1atm 0.997 none Procedure See Introduction to Organic Laboratory Techniques: A Microscale Approach‚ 5th edition by Pavia‚ Lampman Kriz‚ and Engel pages: 186-189 Experiment 21:
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Araldite® bonding Surface preparation and pretreatments Working directions for the surface preparation essential for optimum adhesion between structural materials bonded with Araldite® adhesives. Araldite® adhesives form extremely strong and durable bonds with plastics‚ metals‚ glass‚ rubber and many other materials. Designers in every sphere of industry increasingly find that bonding with Araldite® provides the answer to production problems posed by new materials‚ new uses of existing materials
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007 50 Soluble in water‚ acetone‚ methanol. Insoluble in ethanol Slightly hazardous in case of skin contact (irritant)‚ of eye contact (irritant)‚ of ingestion‚ of inhalation. Sodium Sulfate (Na2SO4) 142.04 884 Soluble in water‚ glycerol‚ hydrogen iodide. Insoluble in ethanol Hazardous in case of eye contact (irritant). Slightly hazardous in case of skin contact (irritant)‚ of ingestion‚ of inhalation. 2-Methyl-2-Butanol (C5H12O) 88.15 -9 Soluble in water Highly flammable. Irritating to respiratory
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CHEMICAL KINETICS RESULTS AND DISCUSSION The balanced equation of the reaction between sodium thiosulfate and Hydrochloric acid is: S2O32- (aq) + 2 H+ (aq) SO2 (g) + S (s) +H2O (l) Using beakers with the same diameter was very important in conducting the experiment. If different sizes were used‚ the visibility of the “x” on the paper beneath the beaker could disappear from view too early or too late than the hypothetical time depending on the depth of the solution. It was also significant
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Nonmetal Rule: Full name of the metal + Stem on the nonmetal + the suffix “ide” Formula Name NaCl Sodium chloride CsF Cesium fluoride CaBr2 Calcium bromide MgO Magnesium oxide Li2S Lithium sulfide Al2O3 Aluminum oxide ZnH2 Zinc hydride AgI Silver iodide SrS Strontium sulfide Ca3N2 Calcium nitride K2Te Potassium telluride Na3N Sodium nitride CaC2 Calcium carbide LiH Lithium hydride Mg3P2 Magnesium phosphide Memorize your fixed charge metals!!!! Group 1A‚ 2A‚3A and Al+3‚Zn+2‚ Cd+2 and Ag+1
Free Oxide Oxygen Ion
Title: Reaction of Iodoethane with Sodium Saccharin- Ambient Nucleophile Dates Performed: February 21 + 28‚ 2013 Date Submitted: March 14‚ 2013 Abstract: The product ratio of N-ethylsaccharin to O-ethylsaccharin that occurred due to alkylation with iodoethane at 80 oC was determined to be 81.5% to 18.5%‚ respectively‚ based on an analysis of the 1H NMR spectrum that was collected. The melting point range of 87.8-94.7 oC also indicated that the mixture was largely composed of N-ethylsaccharin
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Differences Between Ionic and Covalent Compounds Abstract In chemistry‚ a compound is a substance formed from two or more elements‚ with a fixed ratio determining the composition. A defining characteristic of a compound is that it has a chemical formula. Formulas describe the ratio of numbers of atoms in a substance. Compounds may have a number of possible phases. For a compound to be a liquid or a gas and still be called a compound‚ atoms from the various elements must be stuck together in
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sodium phosphate‚ sodium iodide‚ sodium sulfate‚ sodium chloride‚ sodium bicarbonate‚ sodium carbonate and sodium hydroxide were added to the five vertical wells under columns 1-7. |cobalt(II)nitrate|copper(II)nitrate|iron(III)nitrate|barium nitrate|nickel(II)nitrate| sodium phosphate|Precipitated a purple color|Precipitated a light blue color|Precipitated a light milky yellow color|Precipitated a white milky color|Precipitated a very light bluish color| sodium iodide|NR|Precipitated a dark amber
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22‚ 2007 Chem. 1130 TA: Ms. Babcock Room 1830 Chemistry Annex PURPOSE OF THE EXPERIMENT Kinetics of Hydrogen Peroxide The major purpose of this experiment is to determine the rate law constant for the reaction of hydrogen peroxide and potassium iodide. In this experiment‚ the goal will be to try to measure the rate law constant at low acidity‚ since at low acidity‚ anything less than 1.0 x 10-3M‚ the effect of the hydrogen ion is negligible. To calculate the rate‚ the experiment will have to utilize
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