1. Explain why your measurement of the line in Part A might not be identical to the measurements taken by your lab mates Assuming all the measurements were taken correctly, what is the maximum number of digits that should differ between your measurement and those from your lab mates? 2. When measuring a small volume, such as the volume of a small test tube, should you use a 10 mL, 25 ml, or 50 ml graduated cylinder to obtain the most precise measurement? Explain your choice.
3. In Part B, did all of your mass measurements have the same number of digits after the decimal place? If not, Is there a difference in the amount of Information provided by the measurements? What does this tell you about the ability of the electronic balance to measure the masses of objects of significantly different sizes? Justify your answers.
4. Did your data from Part C suggest that filling a 125 mL Erlenmeyer flask to the indicated line is a reliable way to votain 125 mL of lould2 When you need to make a volume measurement in the lab, which is the best choice of instrument: a graduated cylinder, beaker, or Erlenmeyer flask? Explain your answer.