a. Draw the condensed structures and give the systematic names for all the alkenes with molecular formula C6H12, ignoring stereoisomers.(Hint: There are 13.)b. Which of the alkenes have E and Z isomers?c. Which of the alkenes is the most stable?d. Which of the alkenes is the least stable?
CHM 2045 Ch. 3 Notes • Know: mole concept and mole calculations, percent composition, empirical formula & molecular formula determination • Key points about the MOLE concept o The mole maintains the same mass relationships between macroscopic samples as exists between individual chemical entities o The mole relates the number of chemical entities to the mass of a sample of those entities o So we count chemical entities by weighing them 23 o We use Avogadro’s number (6.022 * 10 ) to say that one mole contains 6.022 * 10 Avogadro’s number of ions, molecules, particles, etc. (You must know more than just the number!) o A mole represents a fixed number of chemical entities and has a fixed but different mass for each Mole and Molar Mass Aspirin, (C 9 O8)4 What is aspirin’s molar mass (12.01 g C / mol C, 1.008 g H / mol H, 16.00 g O / mol O) 9 (12.