Then the primary stain malachite green will be added to the slide. Cover the slide with a strip of bibulous paper. Place the slide over steam for ten minutes. Keep slide moist by continuing to apply malachite to the slide. Remove the paper and gently rinse the slide with water. The spore cells should remain green but malachite should wash away from the vegetative and spore mother cells. Then I will counter-stain with safranin. The vegetative cells will appear red. I will apply immersion oil and view
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add more soap whenever it becomes too full of gunk to really clean any subsequent dishes. As you finish with scrubbing each dish‚ you want to rinse it off under the tap or in the second sink if you are using the double-bowled method. For this method‚ you can simply fill the second sink with lukewarm water and dunk the dishes in to rinse them. After you rinse each dish‚ double-check that you have gotten it completely clean. Once you are sure each dish is clean‚ dry it off using a dish towel. Do not
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Gram Characteristics of Bacteria Introduction Bacteria are interesting little critters in that they are not easily visualized without some sort of stain. In classical methodology‚ two different kinds of stains have been used to identify bacteria: acidic and basic dyes. Acidic dyes are so called because they consist of a salt that has a cation that transfers no color‚ but the anion portion is colored and does give off color. Basic dyes consist of an anion that does not give off any color and a cation
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Rossi/Kuwata Chemistry 222 Spring 2011 Experiment 2: Spectrophotometric Determination of Iron in Vitamin Tablets (Adapted from Daniel C. Harris’ Quantitative Chemical Analysis and R. C. Atkins‚ Journal of Chemical Education 1975‚ 52‚ 550.) Experimental work to be done on February 24 + one hour scheduled on your own Notebook due on March 4 (by 4:00 pm ⇒ 20% late penalty each 24 hour period thereafter) INTRODUCTION In this experiment‚ you will dissolve the iron in a vitamin supplement tablet‚
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Titration Lab A Titration is a process of the concentration of one solution being determined by its reaction with either a standard solution or a known quantity of solid dissolved in solution. It may also be used to calculate the molar mass of an unknown acid or base. Purpose: I. Prepare a standard solution of sodium hydroxide II. Standardize a sodium hydroxide solution by using potassium hydrogen phthalate (KHP) III. When given whether the acid is monoprotic‚ diprotic‚ or triprotic
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Laboratory Report 4: Invertebrate Animals Section: I Table: 6 Date: September 26th‚ 2013 Introduction: In our group‚ our task was to observe the selected four invertebrates and familiarize ourselves with their taxonomic levels through the organism’s mechanisms of feeding‚ motility‚ and reproduction. Our group used the prior knowledge we possessed about the Hydra‚ Rotifer‚ Gammarus‚ and Planaria organisms to complete the lab. We knew that all of these small invertebrates have a
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markets from P&G‚ Unilever‚ Nestle’s L’Oreal Division‚ Henkel of Germany and Kao of Japan. Situation In 1991‚ CP held 43% of the world toothpaste market and 16% of the world toothbrush market. Other oral care products included dental floss and mouth rinses. In 1991‚ worldwide sales of CP’s oral care products increased 12% to $1.3 billion‚ accounting for 22% of CP’s total sales. Toothbrushes represented 19% of CP’s U.S. Oral Care Division sales and profits‚ and CP held the number one position in the
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into the beaker of nitric acid and observe the reaction. After 5 seconds remove penny with forceps and place into second beaker. III. Add approximately 25mL of deionized water into second beaker to remove any remaining copper ion traces and place rinse into first beaker with nitric acid. Record your observations of the copper (II) nitrate‚ Cu(NO3)2. Dry and weigh the penny to see how much of
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MICROBIOLOGY SECTION The microbiology section aims at studying yu ailments and diseases from the isolation of suspected causative organisms. The processes involved in the isolation of these organisms include; culturing‚ staining‚ microscopy and sensitivity tests. Samples collected for examination include; stool‚ blood‚ sputum‚ urine‚ vaginal swab‚ wound swab and wound biopsy. Bacterial Culturing and sensitivity Cultures are carried out to isolate suspected organisms from a sample. There are different
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1 SN2 Reaction‚ Ionic Liquid (Group – hood) Background Reading Solomons and Fryhle Chapter 6 (Substitution/Elimination Reactions) Techniques: Weights and Measures‚ Reflux‚ Liquid-Liquid Extraction‚ Distillation. Introduction The SN2 reaction is a bimolecular nucleophilic substitution reaction where the nucleophile (a molecule with a free pair of electrons) reacts with an alkyl halide and replaces the halogen (for more details see Solomons and Fryle‚ Chapter 6). The nucleophile approaches
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