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Instructions: Calculate the empirical or molecular formula for compounds. Show all of your work. 7. A 2.87 g sample of carbon reacts with hydrogen to form 3,41 g of car fuel. What is the empirical formula of the car fuel? Save Hydrogen mass = mass of fuel - mass of carbon hydrogen mass = 3.418 -2.87g = 0.54g 1 8. Glucose is a carbohydrate that contains carbon, hydrogen, and oxygen. The empirical formula of glucose is CH,0 and its molar mass is 180.12 g/mol. Find the molecular formula of glucose. Chemical Bonding Instructions: Draw the Lewis Structures for the following molecules. There are free software programs available online that will allow you draw these structures. You can also use drawing tools on your computer or freehand it, take a picture and insert it into this document. 1. ZnCl2 EGZTET! 2. CHA Share HCH 3. NI