Table 2. Cal Iculated Data-Mean, standard deviation, and percent errors for volu
ID: 3354986 • Letter: T
Question
Table 2. Cal Iculated Data-Mean, standard deviation, and percent errors for volumes Fill in the table with the values calculated using Excel. Calculated Value Actual volume Beaker Graduated cylinder Volumetric flask Buret Pipet :17 | 24357|2493||24774| Z.8C0 Standard Deviation Percent Error Show correct significant figures and units for all data that require units for full credit. Attach your Excel spreadsheet used to find volume means and standard deviations. A sample spreadsheet with fictitious data is shown in Figure 1 of the Data Analysis section. Show below sample calculations using beaker data. Calculate the "actual volume" for your first trial using beaker data in Table 1, and then calculate the "percent error" for the volume using the mean of all eight measurements for beaker data in Table 2. aa 1. Calculation of actual volume of your first 25 mL sample using the beaker. 2. Caleulation of percent error in measuring 25 mL using a 100 ml or 150 mL beaker. Rev 1-1-2016 12 0 12Explanation / Answer
It is unclear here, with the given data in the images, which one is the first trial.
Assuming the first row to be the first trial, actual volume of first trial = 20.401
Now, mean value of measurements by beaker = 21.117 <-- This is the theoritical value.
Percent error = [ absolute_value(observed value - theoritical value)/(theoritical value) ] * 100% = 3.39% [Answer]
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.