Learn about the basic biology of brine shrimp. Hypothesis In this lab I hypothesize that the most lethal household chemical is bleach and that is has the lowest LD50. Materials: ● ● ● ● ● ● ● ● ● ● ● 1000 ml beaker/2 gallon tank air pump air stone tubing eye droppers 10 ml pipettes graduated cylinders small petri dishes dissecting scopes/hand lenses beakers stopwatch live brine shrimp Lysol Bleach vinegar acetone (nail polish remover) Procedures: Place live brine shrimp in a small aquarium tank or a 1000ml beaker with an aerator
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can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you used the E. coli or B. megaterium and number the quadrants 1 through 4. Please keep in mind that one pair will
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and health profile of the things they buy. For example‚ Method says we should throw away the bleach‚ we don’t need bleach. Method says bleach is nasty stuff and doesn’t get your clothes clean; better yet we don’t need it to get our clothes clean. Method states that their technology in their product can get our clothes clean without bleach. This is a product we don’t need in our home. Method states that bleach and other surface cleaners contain all sorts of nasty chemicals that are toxic to breathe
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Exchange Commission‚ It acquired from Southland Corporation of Dallas‚ Texas the license to operate 7-Eleven stores in the Philippines in December 13‚ 1982. Operations commenced with the opening of its first store in February 29‚ 1984 at the corner of Kamias Road and EDSA Quezon City‚ Metro Manila. 7/11’s vision is “be the best retailer of convenience for emerging markets.” And their Mission is “To make daily life easier by providing modern convenience.” The company’s Core Values are the ff: • Customer
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POSTLAB REPORT (65 pts) 1. State the objective(s) of the lab. (5 pts) • To analyze the effects of specific liquids on a variety of materials • To observe potential hazards • To investigate the effects of strong bases‚ strong acids‚ acetone and bleach on a variety of materials which include sugar‚ cotton‚ nylon‚ hair‚ polystyrene‚ egg white‚ egg yolk‚ and aluminum foil. 2. Give a summary of your observations for each of the experiments. (24 pts) Sugar + H2SO4 Black clumped substance formed
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including bleach‚ lemon juice‚ soda‚ and baking soda were used. There was also an unknown solution in which the pH level was used to determine which solution it was. The pH scale is 1-14‚ a pH of 7 is neutral‚ less than 7 is acidic‚ and greater than 7 is acidic. Materials: * pH strips * 20 test tubes * Disposable transfer pipettes * Indicators * Methyl Orange * Bromocresol green * Bromocresol purple * Phenol red * Solutions included * Bleach
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Redox Titration Analysis of a Commercial Bleach A. Purpose ! ! ! To review oxidation-reduction reactions and their stoichiometry. To learn the concept and technique of redox titration. To determine the percent (m/v) of an active ingredient‚ sodium hypochlorite (NaOCl)‚ in a commercial bleaching agent. B. Theoretical Background Whereas acid-base reactions involve the transfer of a proton‚ oxidation-reduction or redox reactions involve the transfer of electrons from one substance to
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ACE A. ASPECTO Blk. 5 Lot 18 Ph. 7‚ St. Jude Street Rocka Village II‚ Tabang‚ Plaridel‚ Bulacan Mobile No. : 09066713062 / 0927-253-8500 E-mail Address : mybhey01@yahoo.com SSS No. : 34-24482702-6 Passport No. : EB1132594 PERSONAL INFORMATION: Age : 24 years old Birth date : April 27‚ 1988 Birthplace : Batangas City Gender : Male Height : 5’6” Weight : 60 kg Civil Status : Single
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Cleaning Seashells: 1. Burying - This one is pretty simple. Find an area in your yard where you don’t mind digging a hole and bury the shells about 18" down. The reason for the depth is so animals will not find them and dig them up. Also you or your neighbors won’t smell them. Let them remain buried until the insects‚ ants‚ larvae‚ worms and bacteria remove all the tissue and they will darn near polish the inside of the shell. But‚ this could take as long as a couple of months. The longer you
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familiar with subtypes of culture media and the uses for each‚ learn and employ the streak and pour dish techniques‚ and generate a pure culture of a specific organism. Set Up: For this experiment I needed: 1 Distilled water‚ 1 Paper towels‚ 1 10%-bleach or 70% alcohol solution‚ 1 Zip bag‚ 1 Pan to heat agar‚ 1 Isopropyl alcohol (rubbing alcohol)‚ 1 Cultures: S. epidermidis and L. acidophilus‚ 1 Gloves‚ Disposable‚ 1 Pencil‚ marking‚ 11 Petri dish‚ 60 mm‚ 2 Candles (flame source)‚ 1 Thermometer-in-cardboard-tube
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