Propagation of Error and Statistics Worksheet

Propagation of Error and Statistics Worksheet ORDER NOW FOR CUSTOMIZED AND ORIGINAL ESSAY PAPERS ON Propagation of Error and Statistics Worksheet A 25 mL class A pipet and an Ohaus Explorer model EX124 analytical balance are used to obtain the following experimental data: Trial 1 (g) Trial 2 (g) Trial 3 (g) Trial 4 (g) Trial 5 (g) Mass Beaker 54.6003 54.5996 54.6003 54.5987 54.5995 Mass w solution 80.2180 80.1141 80.0187 80.6504 80.7774 Solution Number Mass NaCl (g) Volumetric Flask (mL) Pipet (mL) Mass Beaker Mass Beaker w solution 1 1.0547 100 25 68.40121569 93.56275305 2 1.9865 100 25 68.40067581 93.7401003 3 3.0058 100 25 68.40119039 93.92849894 4 4.0987 100 25 68.40023532 94.13449573 5 4.9984 100 25 68.4013874 94.2988315 6 6.0245 100 25 68.40093462 94.50244286 attachment_1 attachment_2 Chemistry 366 Homework Problem Set Widener University Dr. Van Bramer January 2019 Propagation of Error and Statistics Worksheet A 25 mL class A pipet and an Ohaus Explorer model EX124 analytical balance are used to obtain the following experimental data: Mass Beaker Mass w solution 1. 2. 3. 4. 5. 6. Trial 1 (g) 54.6003 80.2180 Trial 2 (g) 54.5996 80.1141 Trial 3 (g) 54.6003 80.0187 Trial 4 (g) 54.5987 80.6504 Trial 5 (g) 54.5995 80.7774 Calculate the density of the solution for each trial Use propagation of error to determine the uncertainty in the density of the solution for each trial. Determine the average density for the solution. Determine the standard deviation for the density of the solution. Determine the 90% confidence interval for the density of the solution. Determine the 95% confidence interval for the density of the solution. A set of salt water standards is created by weighing sodium chloride, adding to a 100 mL class A volumetric flask and diluting to the mark. 25 mL of this solution is transferred into a beaker with a class A volumetric pipet. Solution Number 1 2 3 4 5 6 1. 2. 3. 4. Mass NaCl (g) 1.0547 1.9865 3.0058 4.0987 4.9984 6.0245 Volumetric Flask (mL) 100 100 100 100 100 100 Pipet (mL) Mass Beaker 25 25 25 25 25 25 68.40121569 68.40067581 68.40119039 68.40023532 68.4013874 68.40093462 Mass Beaker w solution 93.56275305 93.7401003 93.92849894 94.13449573 94.2988315 94.50244286 Create a calibration curve using the density and salinity (ppt) of the standards. Use this calibration curve to determine the salinity of the unknown solution for each trial Determine the average salinity for the solution Determine the uncertainty in the salinity of the solution based on the uncertainty in the calibration curve. 5. Determine the standard deviation for the salinity of the solution 6. Determine the 90% confidence interval for the salinity of the solution 7. Determine the 95% confidence interval for the salinity of the solution trial 1 trial 2 trial 3 trial 4 trial 5 average mass beaker mass w solution solution mass 54.6003 80.2180 25.6177 54.5996 80.1141 25.5145 54.6003 80.0187 25.4184 54.5987 80.6504 26.0517 54.5995 80.7774 26.1779 54.5997 80.3557 25.7560 std. dev. 90% interval 95% interval 0.3380 density 1.0247 1.0206 1.0167 1.0421 1.0471 1.0302 volume 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 % uncertainty 80.9000 80.8000 80.7000 mass with solution (g) uncertainty 80.6000 80.5000 80.4000 80.3000 80.2000 80.1000 80.0000 79.9000 54.5986 54.5988 54.5990 54.5992 54.5994 mass beaker (g) y = -361.82x + 19836 54.5994 54.5996 mass beaker (g) 54.5998 54.6000 54.6002 54.6004 solution no. NaCl (g) Flask (ml) pipet (ml) mass beaker beaker w solution 1 1.0547 100 25 68.4012157 93.5627531 2 1.9865 100 25 68.4006758 93.7401003 3 3.0058 100 25 68.4011904 93.9284989 4 4.0987 100 25 68.4002353 94.1344957 5 4.9984 100 25 68.4013874 94.2988315 6 6.0245 100 25 68.4009346 94.5024429 … Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10