copper and silver nitrate. Materials Copper wire stirring rod 18 x 150 mm test tube silver nitrate‚ AgNO3 50 mL graduated cylinder distilled water 100 mL or 250 mL beaker Procedure Day 1 1. Obtain a 30 cm length of bare copper wire‚ stirring rod‚ and 18 x 150 mm test tube. Coil the copper wire by wrapping it around a glass-stirring rod. Stretch the coiled wire until it is about 2 cm longer than the test tube. Leave wire tightly coiled near one end and stretched out and straighten toward
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capillary tube were taken every minute. The opening of the capillary tube had an area of 4 mm2. Study the table below of the results obtained‚ and answer the questions that follow. Time (minutes) 1 2 3 4 5 1.5.1 Use the equation‚ Volume of water displaced = distance along capillary tube x area of capillary tube opening‚ to calculate the volume of water displaced at the second minute. 1.5.2 During which minute did the transpiration rate decrease? Distance travelled by air bubble along capillary tube (mm)
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weighing paper digital scales rubber tubing (hose) acetic anhydride filter paper Mel-temp apparatus 10- mL graduated cylinder large test tube medicine dropper | Compound | FW (g/mol) | MP (BP) | density | Hazards | | Acetanilide | 135.17 | 114 ºC | ---
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“Test-Tube Burgers” One summer when taking a trip to a friends country house for a weekend I took on the challenge of being a vegetarian. My friend‚ an only child‚ had been raised a vegetarian by parents who were also vegetarians; never once in his life had he eaten meat. Although the family was tolerant of whatever I did‚ I decided this was an opportunity to try it for myself and see what it would be. At the end of the few days I found it quite easy‚ although in reality I did not consume nearly
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boy whom I nicknamed “Tube-Boy” as well as making assumptions about the players in the soccer field nearby. Starting with assumptions can lead to faulty analysis as I am more likely to notice or focus on events that are related to my initial assumptions rather than something new.
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Nursing Care of the T-Tube after Cholecystectomy Also called a biliary draining tube. May be placed in the common bile duct after cholecystectomy or choledochostomy. The tube facilitates biliary drainage during healing. The surgeon inserts the short end (crossbar) into the common bile duct and draws the long end through an incision in the skin. The tube is then connected to a closed gravity drainage system. Post-operatively it remains in place between 7 to 14 days. Equipment Graduated collection
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2-7-1 Column of Air Resonance and the Velocity of Sound This activity uses the resonance of a column of air to measure the velocity of sound. English Activity: Setup í Equipment Glass Resonance Tube (Uniform Inside Diameter‚ With Scale Markings) Rubber Tube Reservoir Stand Low Frequency Generator (or Tuning Fork) Audio Measurement Setup (EA-200‚ graphic scientific calculator‚ data communication cable) Temperature Measurement Setup (EA-200‚ graphic scientific calculator‚ data communication
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Carbon nanotube 1 Carbon nanotube Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. Nanotubes have been constructed with [1] length-to-diameter ratio of up to 132‚000‚000:1‚ significantly larger than for any other material. These cylindrical carbon molecules have unusual properties‚ which are valuable for nanotechnology‚ electronics‚ optics and other fields of materials science and technology. In particular‚ owing to their extraordinary thermal conductivity
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Recently a scientist by the name of Mark Post helped create a “test tube” beef burger. The burger was grown in a solution of nutrients and cost about 330‚000 dollars to make. The burger was created by taking muscle cells from a cow and growing them into tissue. The meat had to be dyed to make it look like real beef. The meat contains no fat and is disease free. The meat was made in the Netherlands at Maastricht University. It was served to two volunteers and was flavored with egg powder and bread
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ESTIMATION OF IRON IN IRON ORE-SPECTROPHOTOMETRIC METHOD By: Taylor Villari Experiment conducted on 7/22/13 Components of each test tube examined in the spectrophotometer Trial | Volume of Iron solution (mL) | Micrograms of Iron | Volume of 10% sodium acetate | Volume of 0.1% o-phenanthroline | Volume of water (mL) | 1(blank) | 0.0 | 0.0 | 1.0 mL | 1.0 mL | 8.0 mL | 2 | 1.0 mL | 10 | 1.0 mL | 1.0 mL | 7.0 mL | 3 | 3.0 mL | 30 | 1.0 mL | 1.0 mL | 5.0 mL | 4 | 5.0 mL | 50 | 1.0 mL
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