Sunday, November 24, 2013

Solubility lab

Purpose: Collect the experimental info necessary to b pack in s solubility curve for the chiliad treat in piddle.   Materials (per group): balance, burner, spatula, 4 streak tube-shaped structures, running tube rack, four atomic number 6 ml beaker, 10 ml graduated cylinder, stirring rod, ring stand, weightlift ring, clamp, equip gauze, marking pencil, goggles. Procedure: 1) Using a tag pencil, number test tubes 1-4, and place in a test tube rack. 2) Each person is responsible for wizard test. find out up the four tests in the pursuance manner: try on tube #1: 2.0 grams of jet nitrate - 5 ml of wet see tube #2: 4.0 grams of potassium nitrate - 5 ml of urine Test tube #3: 6.0 grams of potassium nitrate - 5 ml of pissing Test tube #4: 8.0 grams of potassium nitrate - 5 ml of water 3) Fill a 400 ml beaker about ¾ full of tap water to be used as a hot water bath. do on a ring stand and wire gauze and heat to 90 degrees Celsius. Try to maintain this t emperature 4) hive away a thermometer in each test tube, and put them in the water bath. Stir gently until all the solute dissolves. 5) When all the solute dissolves exclude the test tube and hold the test tube up to the combust and watch for signs of watch crystal. At the instant crystallization begin, find and immortalise the temperature. 6) Share your results with your lab group.
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  Data and observations: Prepare a data table including the following: test tube #1-4, quid of solute per 5 ml of water, mass of solute per 100 ml of water, crystallization temperature. Test Tube #g of solute / 5 ml H2Og of solute / 5 ml H2O x 20Temp. 12.0/20.6 g20.0! /412.0 g30 C 24.0/22.6 g80.0/452.0 g46.8 C 36.0/24.6 g120.0/492.0 g72 C 48.0/26.6 g160.0/520.0 g80 C Analysis of Data: Prepare a graphical record using Microsoft excel of the following information. Temperature vs. Grams of potassium nitrate/5 ml of water. Remember to label your axis and tie beam a smooth curve of your four data points.   Questions: 1) map out your graph to determine the number if grams...If you want to get a full essay, order it on our website: BestEssayCheap.com

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