When re-attaching the shifter to the linkage with the long bolt, there may be some difficulty getting the base of the shifter, with the new bushings, seated between the arms of the linkage. To make this part easier, I inserted a pair of pliers between those arms and stretched them out a bit.
I also taught Masters Students at Imperial for 3 years. The molecular formula for cyclohexane is C6H12, therefore one molecule of cyclohexane contains 6 carbon atoms and 12 hydrogen atoms. The relative atomic mass (RAM) of carbon is 12.011 g/mol. For hydrogen the RAM is 1.008 g/mol. Cyclohexane's molar mass is thus: (6 x 12.011) + (12 x 1.008) = 84.162 g/mol.
The idea here is that you need to use neon's molar mass, which tells you what the mass of one mole of the element is, to determine how many moles you have in that #5.9-g# sample. Once you know how many moles you have, you can use Avogadro's number to find the number of atoms. So, neon has a molar mass of #20.18 g/mol#, which means that every mole of neon has a mass of #20.18 g#. Your sample of neon will thus contain