* Aim of Experiment: * To investigate the effect that emersion in salt solutions has on imbibition in kidney beans. * Safety Considerations: * One must use extreme caution when working with chemicals. Always wear protective goggles and gloves when handling them. KCl is slightly hazardous in case of skin contact‚ eye contact‚ ingestion‚ or inhalation. In case of eye contact‚ immediately flush eyes with plenty of water for at least 15 minutes. Seek medical attention if irritation
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Acid and Bases 1 Determining Acids and Bases SNC-2D1 April 02‚ 2013 Acid and Bases 2 Purpose The purpose of this chemistry lab is to investigate and find patterns/tendencies between substances Introduction An acid is a solution that has more free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH less than 7. A base is a solution that has less free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH of more than 7. In the late 1800s‚ the Swedish scientist Svante
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To begin the experiment‚ the unknown needs to be determined as an acid or a base by using litmus paper or a pH strip. For the rest of the experiment‚ if the substance is being handled‚ gloves and goggles must be worn. Use a clean and dry Erlenmeyer flask and weigh it. Then‚ some of the unknown will be measured and poured into the flask. Also way the flask and the unknown. Add distilled water and phenol saline to the flask. Set that aside to prepare the biuret. Choose the substance that will be used
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Will Godfrey Chemistry Miss. Morrison May 21‚ 2000 Natural Indicators Each year millions of tourists travel to the woods of New England‚ upstate New York‚ Wisconsin‚ and Canada to witness the appearance of brilliant autumn colors. Sugar maples‚ red oaks‚ sumac‚ birch and other trees and shrubs turn from green to bright red‚ orange‚ and yellow. The short‚ cool days of autumn bring an end to the production of chlorophyll (the green light-gathering pigment). As chlorophyll gradually breaks
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Punches Materials: * 6 Test Tubes * Vernier Gas Pressure * Sensor * Catalase * Filter Paper Punches * Beaker * Control Group * Test Subject * Safety Goggles * Dropper Pipette * Go Link Procedure- 1. Gather Your Materials Figure 2 2. Put on your goggles 3. Login into your computer Figure 1 4. Open up Logger Pro 5. Follow directions on the Vernier Direction sheet 6. Plug in the Go Link onto
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will release the most energy per gram because they are mostly made of sugar and glucose which tends to release high amounts of energy when consumed since they are monosaccharide’s. Materials and Procedure List of materials used: * Safety Goggles * Lab apron * 10 cm by 10 cm piece of cardboard * Aluminum foil * 2 Large paper clips * Tape * Calorimeter (aluminum can‚ paper clips‚ copper string) * Ring stand * Thermometer * Electronic balance * Glass
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I. Title: Reaction of Metals II. Problem: The purpose of the experiment was to determine if and how different metals react to different solutions. III. Hypothesis: IV. Materials: Dropper‚ Beakers‚ wax pencil‚ Goggles‚ eight test tubes‚ a rack for the tubes‚ three strips of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five
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What to do When You Screw Up (This essay was originally published in the electronic Newsletter for the Honors Program for the College of Letters and Science at UC Santa Barbara in Winter 2009.) Many people mistake me for a successful person‚ so I try to keep a record of all my failures‚ and for reasons that will become clear later in this essay. True failure and rejection didn’t begin for me until late adolescence: when I applied for college‚ I got just one rejection letter‚ but it felt like
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SCH4U7-02 Monday‚ October 21‚ 2013 Designing an Experiment to Investigate Factors Affecting Rate of Reaction Introduction Hydrogen Peroxide (H2O2)‚ is the most simple peroxide and commonly used in several household items such as toothpaste or as an alternative to bleach. However hydrogen peroxide it is a very dangerous substance when accumulated in large amounts. If that situation occurs this substance must be decomposed. But how can we decompose this reaction? Well it decomposes by itself
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Pediatric Sports Observation Date: _____10/10/14____ Student: _Arezoo Cheatham___ Team or Individual Structure: Team How long was the game: 1:30 Applicable Theory: provide specific example that confirms the stage Erikson’s Developmental Stages: role identity vs. confusion Piaget’s Cognitive Development: Formal operation According to Piaget’s‚ cognitive development through adolescents involves movement form concrete to abstract thinking this allows them to think about possible outcome of
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