Calculate Theoretical Value for Equipment Accuracy

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SUMMARY

The discussion focuses on calculating the theoretical value for equipment accuracy in a laboratory setting involving graduated cylinders and beakers. Participants detail the process of measuring the mass of water added to various pieces of equipment and emphasize the importance of knowing the density of water, which varies with temperature, to determine expected mass. The specific equipment used includes 10mL, 50mL, 100mL graduated cylinders, and multiple beaker sizes. The goal is to compare the theoretical accuracy with the actual measurements obtained during the experiment.

PREREQUISITES
  • Understanding of laboratory measurement techniques
  • Knowledge of density and its temperature dependence
  • Familiarity with graduated cylinders and beakers
  • Basic skills in calculating percentage accuracy
NEXT STEPS
  • Research the density of water at various temperatures
  • Learn how to calculate percentage accuracy in measurements
  • Explore the principles of precision and accuracy in laboratory settings
  • Investigate common sources of error in volumetric measurements
USEFUL FOR

This discussion is beneficial for laboratory technicians, students in scientific fields, and educators involved in teaching accuracy and precision in measurement techniques.

yjk91
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how do you get the theroetical value?
it's a accuracy and precision lab
we basically put designated amount of water into beakers and cylinders, graduated, and measure the mass. And we are suppose to find the theoretical accuracy of each piece of quipment and the actual % accuracy for each sample

Equipment mass of equip amount H20 added mass equip + actual water
10mL graduated Cylinder 5.14g 10mL 15.19g
50mL graduated Cylinder 64.97g 10mL 74.94g
100mL graduated Cylinder 93.65g 10mL 102.46g
50mL Beaker 28.32g 20mL 48.41g
100mL Beaker 50.32g 20mL 65.63g
150mL Beaker 62.33g 20mL 75.13g
250mL Beaker 108.76g 20mL 124.25g
400mL Beaker L 163.76g 20mL 183.80g


if you can just show me how than i will do the rest
 
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You can calculate the expected mass of water from the volume if you know the density of water (you should be able to look this up. Note that the value depends on the temperature of the water).
 

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