In the box provided, summarize the main results of this week's experiment. For Part I, compare the standard deviation and relative errors for the determinations of the density of water using three different pieces of laboratory glassware. Order them according to their reliability for precise and accurate work. For Part II, discuss why the sample lost mass and explain why it is a common laboratory procedure to heat analytical reagents and store them in a dessicated atmosphere (a sealed environment containing a dehumidifying agent) before use.