# It in order to get the mass of each portion of water

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it in order to get the mass of each portion of water added to find the mean mass of 10.0 mL of water added, standard deviation, and

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10 relative deviation for each of the glasswares used. Here they have to convert the average mass and also the standard deviation of each mass into volumes which leads into Table #3. In table #3 the students had to determine if the measurements of the glassware were accurate and precise for measuring volume. After measuring volume they also need to find the standard deviation, absolute error for each glassware, and the relative standard deviation for the glassware. The students used variation to find the average and the standard deviation through a scientific calculator, afterwards they subtracted the average volume with the true value (10 mL) to get the absolute error for glassware. At a glance, the 50 mL beaker and the graduated cylinder’s results were roughly about the same on table #1 but moving onto table #2 this clearly shows that the graduated cylinder is accurate since its data had remained constant and did not change as much as the 50 mL beaker and the buret. The buret was more precise since the three repeated attempts were within the same range on table #1. The buret’s results on table #2 shows the same calculation range as well. Conclusion To conclude the lab report, measurements are fundamental in science and if not done correctly, it can drastically alter or damage the results of the experiment. Human errors in the lab can also occur, such as gross errors, systematic errors, or random errors. That is why measurement should be taken more than once in order to get more precise and accurate results that are closer to the true value. This experiment, in which three measuring devices were used to
• Fall '19

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