Wednesday, February 5, 2014

Solubility lab

Purpose: Collect the experimental info necessary to progress to s solubility curve for the chiliad treat in piddle.   Materials (per group): balance, burner, spatula, 4 streak pipings, running tube rack, four coulomb ml beaker, 10 ml graduated cylinder, stir call off rod, ring stand, weightlift ring, clamp, wire 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 unity test. find out up the four tests in the side by side(p) manner: try on tube #1: 2.0 grams of special K nitrate - 5 ml of peeing see tube #2: 4.0 grams of chiliad nitrate - 5 ml of urine Test tube #3: 6.0 grams of potassium nitrate - 5 ml of water 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 temperatu re 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 subscribe to the test tube and hold the test tube up to the combust and watch for signs of watch crystal. At the instant crystallization begin, restrain and immortalise the temperature. 6) Share your results with your lab group.   Data and observations: Prepare a data table including the following: test tube #1-4, muckle 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 interpret using Microsoft excel of the following information. Temperature vs. Grams of potassium nitrate/5 ml of water. Remember to label your axis and tie ship a smooth curve of your fo ur data points.   Questions: 1) chromo! some mapping your graph to determine the number if grams...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.