KiriKat

this helps a lot, thank you so much!

How can you distinguish whether molecules are aromatic or antiaromatic? for example: (a) is antiaromatic whereas (e) is aromatic (refer to attach file)

multiply the dimensions: 6m x 5m x 3m = 90m3 since 3600mg of acetone evaporated within the given dimensions: 3600mg/(90m3 ) = 40mg/m3 acetone *3600mg/(90m3 ) means that 3600mg of acetone evaporated in a room that was 90m3 large. I hope it helps.