Item Mass of empty weigh boat Mass of mixture and weigh boat Total Mass of sample of Iron, Salt, and Sand Mass of sample AFTER iron is removed (simply salt and sand) Experimental Mass of Iron Obtained (show how 25.00-18.27= you are calculating this as well) Mass of filter paper Mass of filter paper and sand after drying Experimental Mass of sand (show how you are calculating this as wel!! Mass of empty beaker and aluminum foil lid Mass of beaker, foil, and crystalized salt after dry and cooled. Experimental Mass of Salt (show how you are calculating this as well) Your Percent by Mass of Iron in YOUR Mixture Your Percent by Mass of Sand in YOUR Mixture Your Percent by Mass of Salt in YOUR Mixture Percent Error for % Iron based on Theoretical Percent Error for % Sand based on Theoretical Percent Error for % Salt based on Theoretical 2.579 25.80g 23.23 18.279 7.53g 10.37-55= Recording ng 55g 10.37 9.829 79.919 85.619 5.7g 8561-29-91: 85.61-79.91= 32.41% 42.27% 24.54% Theoretical: 24.0% Fe Theoretical: 54.0% Sand Theoretical: 22.0% Salt

Item Mass of empty weigh boat Mass of mixture and weigh boat Total Mass of sample of Iron, Salt, and Sand Mass of sample AFTER iron is removed (simply salt and sand) Experimental Mass of Iron Obtained (show how 25.00-18.27= you are calculating this as well) Mass of filter paper Mass of filter paper and sand after drying Experimental Mass of sand (show how you are calculating this as wel!! Mass of empty beaker and aluminum foil lid Mass of beaker, foil, and crystalized salt after dry and cooled. Experimental Mass of Salt (show how you are calculating this as well) Your Percent by Mass of Iron in YOUR Mixture Your Percent by Mass of Sand in YOUR Mixture Your Percent by Mass of Salt in YOUR Mixture Percent Error for % Iron based on Theoretical Percent Error for % Sand based on Theoretical Percent Error for % Salt based on Theoretical 2.579 25.80g 23.23 18.279 7.53g 10.37-55= Recording ng 55g 10.37 9.829 79.919 85.619 5.7g 8561-29-91: 85.61-79.91= 32.41% 42.27% 24.54% Theoretical: 24.0% Fe Theoretical: 54.0% Sand Theoretical: 22.0% Salt

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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part A 1. Concentration of Known NiCl2 Stock Solution ___500________ mM Tube Number Blank #1 #2 #3 #4 #5 2. Volume of Known NiCl2 Stock Solution Pipetted Into Tube 0.00 mL 1.50 mL 3.00 mL 4.50 mL 6.00 mL 7.50 mL 3. Volume of Distilled Water Pipetted Into Tube 11.00 mL 9.50 mL 8.00 mL 6.50 mL 5.00 mL 3.50 mL 4. Total Volume of Solution In Tube 11.00 mL 11.00 mL 11.00 mL 11.00 mL 11.00 mL 11.00 mL 5. Diluted Concentration of NiCl2 In Tube ----------- 68.2 mn 136mn 204mn 273mn 341mn 1. Equation for the Best-Fit Straight Line Y=3822x+4.7446 2. Absorbance at λmax for Diluted Unknown 0.87 3. Concentration of NiCl2 in Diluted Unknown 25.693 mM Determine the dilution factor for your diluted unknown U1 based on how you prepared the solutions in Part A. Record this on your report sheet in Part D #4.