Question

Data Analysis 1. Compare the volumes measured in Part I. Which estimated volume was most reproducible when the water was transferred to the graduated cylinder? What aided your estimation? 2. Compare the objects and masses from Part III. Which measurement included the highest percent of uncertainty? Explain why this measurement had more uncertainty than the others.

Answer 1

In the part I, the graduated cylinder 50ml : 40 ml measured volume would give you most reproducible result when poured in to other graduated cylinder. In general, the other mentioned glassware does not give accurate reproducibility when they are checked. The reason is due to the lack of detailed grading on the glass ware like beakers, test tubes. they only give approximate values. But graduated cylinders have more precision and are accurate in reproducibility. 10 ml: 41.5 ml graduated cylinder measured volume would not give much accurate reproducibility when compared to the prior 50ml: 40ml graduated cylinder measurement. The reason behind it is, random error comes in to play as we need to measure 41.5 ml from a 10ml graduated cylinder which leaves more scope making errors as we need to do the measurement five times.

The part III answer is attached in the form of image.

In the part I, the graduated cylinder 50ml: 40 ml measured volume would give you most reproducible result when poured in to other graduated cylinder. In general, the other mentioned glassware does not give accurate reproducibility when they are checked. The reason is due to the lack of detailed grading on the glass ware like beakers, test tubes. they only give approximate values. But graduated cylinders have more precision and are accurate in reproducibility. 10 ml: 41.5 ml graduated cylinder measured volume would not give much accurate reproducibility when compared to the prior 50ml: 40ml graduated cylinder measurement. The reason behind it is, random error comes in to play as we need to measure 41.5 ml from a 10ml graduated cylinder which leaves more scope making errors as we need to do the measurement five times. Graduated cylinder of volume 10ml which measured 41.5ml measured or observed highest percent of uncertainty The main reason is due to the volume