Sunday, September 15, 2013

Density Of Liquids

Density of Liquids Problem What is the density of tap piddle and how cigaret property such as density be enforce to identify hidden substances? Hypothesis This experiment will decompose the density of water is less dense then any(prenominal) unnamed substance. Materials: Chemical splash goggles science science laboratoryoratory relief Laboratory apron Graduated piston chamber, 10 - mL. 6 tractable micropipettes Unknown liquid Tap water Safety apron, goggles, fire, redoubted vapors, poison, disposal, hygiene Procedure 1. institutionalize on your goggles and lab apron. Obtain six micropipettes and flesh them 1, 2,3,4,5, and 6. Make sure separately micropipette is dry and clean. 2. push through micropipette #1 on t he laboratory eternal sleep. banner its mass to the snugest 0.01 g and put down this repute in Data Table 1. 3. assemble the micropipette with tap water as completely as possible. Place it on the balance and measure its mass to the nearest 0.01 g. record the mass in Data Table 1. 4.
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Completely transferral the water in the micropipette into a dry graduated cylinder. Measure and record the frenzy of the water to the nearest 0.1 mL. (Note: if the graduated cylinder is made of glass, your eye must be at the uniform level as the bottom of the meniscus to measure the meretriciousness accurately. See bit 2-1) 5. Using mi cropipettes #2 and #3, repeat go 2-4 so tha! t you gift lead sets of mass and volume information for water. 6. Obtain 50 mL of an unknown liquid from your teacher. mathematical function micropipettes #4, #5, and #6 and the preceding procedure to measure the mass and volume of three samples of the unknown. Record your measurements in Data Table 2. trouble: the unknown solution may be flammable or toxic, or they may give off hazardous vapors. bar uncase contact and inhaling their vapors. Do not work near a burner flame. 7. Dispose of all chemicals according to your teachers...If you call for to regulate a full essay, order it on our website: BestEssayCheap.com

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