write my assignment 12041

In the results section tabulate your final results (mean and standard deviation) for all parts of the experiment including the solution 2A readings in Part 2 step 4 and readings taken over time.

Construct a graph, plotting standard deviation on the y-axis and glassware size used to prepare solutions on the x-axis (omit solution 2A readings in Part 2 step 4 and readings taken over time). Discuss the results of the graph.

In your conclusion address the following: A) Did you achieve the purpose of your experiment?

B) Which method of preparing the solutions results in the least variability (i.e. standard deviation)? How does the variability of each method compare with the variability of solution 2A taken in Part 2 step 4 and taken over time. Explain.

C) What is the source of the variability of solution 2A taken in Part 2 step 4.

D) What is the source of the variability of solution 2A taken over time.

E) If you had to prepare the solutions again what would be the most precise and efficient peace of glassware (pipette, 10mL graduated cylinder, 100mL graduated cylinder or beaker) you would use, support you answer with data.