Data Sheet Enter mass data for your experimental trials. If you were unable to complete a trial, please enter in corresponding prompts to indicate missing data. Trial 1 Trial 2 42.40 Mass of crucible + lid (9) 42.60 Mass of crucible, lid, and Mg (9) 43.06 42.81 Mass of crucible, lid, and magnesium oxide (9) 43.27 43.14 (50pts) Results Table view List view Please calculate quantities below based on your experimental data. Again, if you were unable to complete a trial, please enter into any corresponding prompts to indicate missing data Trial 1 Trial 2 Mass of Mg (9) Mass of magnesium oxide (9) Mass of O in Magnesium oxide product (9) Moles of Mg in magnesium oxide (mol) Moles of O in magnesium oxide (mol) BIUXX → BIUXX Molar ratio (mol Mg: mol ) BI U X X - BIU XX - Simplest whole-number ratio (mol Mg: molo) BIU XX - BI U XX → Empirical formula for magnesium oxide (20pts) Show all work done for all of the previous calculations. Please upload your work (20pts) Post-Lab Questions (5pts) 1. Compare the empirical formulas you obtained for your two determinations. How well do they agree? Discuss briefly sources of error that would cause the results of the two determinations to differ. Normal ΒΙΙΙΟ XX 1919 fx be BEI 91 H T (5pts) 2. Using the equation below and the data for your two determinations calculate the mass percent of Mg in your magnesium oxide samples. Please upload your work. Mass percent Mg (%) = mass of Mg() Mass of Magnesium oxide (g) x 100% Maximum size for new files 20.00MB Maximum attachments 2 Drag and drop a file or folder here or click (5pts) 3. The charge or oxidation number) usually assigned to oxygen in compounds is -2. Based on your empirical formula, what must be the oxidation number of Mg in magnesium oxide? Normal BI IU XX EES Te (5pts) 4. Based on the empirical formula you obtained in this experiment, complete and balance the following chemical reaction: Mg(s) + O2 (9) Normal BIU XxX EEE fx 田万川」」」|」 Tu Total:-/70 pts SUBMIT