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CHEMISTRY 11 – EXPERIMENTAL UNCERTAINTY OF APPARATUS WORKSHEET. (1) Record the values for the experimental uncertainty encountered in using the following apparatus: Apparatus. Difference between numbered divisions. # of unnumbered subdivisions between numbered divisions.
17 cze 2023 · You must use the bottom of the meniscus to determine the volume in the 10 mL graduated cylinder. Since the smallest division (graduation) is a tenth of a milliliter, we can estimate to a hundredth of a milliliter (0.01).
Use the 10 mL graduated cylinder, which will be accurate to two significant figures. Mathematical operations are carried out using all the digits given and then rounding the final result to the correct number of significant figures to obtain a reasonable answer.
Every experiment has some uncertainty caused by limitations in the equipment you use. This is unavoidable RANDOM ERROR and does not reflect on your lab technique. The table given below lists the absolute uncertainties for some equipment used in the Chemistry lab.
Learning Objectives. By the end of this section, you will be able to: Define accuracy and precision. Distinguish exact and uncertain numbers. Correctly represent uncertainty in quantities using significant figures. Apply proper rounding rules to computed quantities.
CHEMISTRY 11 – EXPERIMENTAL UNCERTAINTY OF APPARATUS WORKSHEET. (1) Record the values for the experimental uncertainty encountered in using the following apparatus: Apparatus. Difference between numbered divisions. # of unnumbered subdivisions between numbered divisions.
Use the following scales to measure the quantities required. Be sure to list the appropriate number of digits, as well as the uncertainty that goes along with each measurement. GRADUATED CYLINDER (mL): BEAKER (mL): BURET(mL): V = ______________. V = ______________. BALANCE (g): V = ______________.
