Shawn,Melissa, Pierre, and Kathy are each trying to make a solution that requires 40 mL of stock to be added. Pierre uses a 25 mL, a 10 mL and a 5 mL pipette; Raphael uses a 5 mL pipette 8 times; Rebecca uses a 50 mL burette (hint: You have two measurements with a burette); and Clive uses a 25 mL graduated cylinder. Assuming the only error introduced was by the variance in the glassware, determine the cumulative error for each person. Show all calculations and use the propagation of error equations.
Shawn,Melissa, Pierre, and Kathy are each trying to make a solution that requires 40 mL of stock to be added. Pierre uses a 25 mL, a 10 mL and a 5 mL pipette; Raphael uses a 5 mL pipette 8 times; Rebecca uses a 50 mL burette (hint: You have two measurements with a burette); and Clive uses a 25 mL graduated cylinder. Assuming the only error introduced was by the variance in the glassware, determine the cumulative error for each person. Show all calculations and use the propagation of error equations.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 21RPS: You and your lab partner are asked to determine the density of an aluminum bar. The mass is known...
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Shawn,Melissa, Pierre, and Kathy are each trying to make a solution that requires 40 mL of stock to be added. Pierre uses a 25 mL, a 10 mL and a 5 mL pipette; Raphael uses a 5 mL pipette 8 times; Rebecca uses a 50 mL burette (hint: You have two measurements with a burette); and Clive uses a 25 mL graduated cylinder. Assuming the only error introduced was by the variance in the glassware, determine the cumulative error for each person. Show all calculations and use the propagation of error equations.
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