Abottle of the pain reliever ibuprofen (c13h18o2, molar mass 206.3 g/mol) has 485 tablets. each tablet contains 200. mg of ibuprofen. (a) how many moles of ibuprofen does the bottle contain? (b) how many molecules of ibuprofen does the bottle contain?):

(a) 485 x 200 mg = 97000 mg of ibuprofen in the bottle

97000 mg x (1g/1000mg) = 97g of ibuprofen in the bottle

97g (1 mol/ 206.5gC13H18O2) = 0.46973 moles of ibuprofen in the bottle

(b) 0.46973 mol C13H18O2 (6.022 x 10^23 molecules/1mol) = 2.8287 x 10^23 molecules of ibuprofen in the bottle

1. they vary with a higher number because boiling is way hotter than melting

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be