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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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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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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Purpose: In this experiment‚ the purpose was to have found out how different chemical solutions help or harm radish plant growth when the seeds of the radish plant are soaked in said solutions prior to planting. Background: The IRP project I am doing is based off the subject of seed germination. The seeds I will be planting are cherry belle radish seeds‚ freshly bought. Instead of planting the seeds in soil like it is normally done‚ the plant seeds will be placed on paper towels to grow for better
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Rolling Stone would say “One of the greatest albums of all time” (Greene). The album’s name comes from combining the otherwise separate English words never and mind. “Nevermind” was different from Nirvana’s first album “Bleach” because it was heavier and more alternative sounding than “Bleach” which had a pop music style of sound. Alternative music is a subgenre of rock music that uses more experimental styles and chord progressions. “Nevermind”
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acetic acid and oxidized with sodium hypochlorite to make crude camphor. The crude camphor was purified by sublimation. The final product was characterized by obtaining a melting point and inferred spectroscopy. The experiment was carried out to see if bleach could oxidize borneol and if it is greener than using a Jones reagent. Sure enough camphor was made with a 4.03 g of unsublimed camphor and 0.08g of pure camphor with a 2 % yield (in moles). No melting point or IR peaks were obtained. However‚ the
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It all started when I let a stylist cover my hair in 40 volume bleach. “Let” is the wrong word‚ I was 15‚ in the suburbs of Philadelphia‚ and essentially knew nothing. All i knew was that i wanted to be BLONDER—similar to what my hair looked like when I was about 4 years old. It had been the hay day of emo kids‚ and when my natural golden locks weren’t really doing anything to help my Myspace photos‚ I had decided to add red highlights‚ then chopped it‚ then blonde highlights with an under-layer
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