Aballoon contains 5 l of oxygen at a pressure of 90 kpa. how much oxygen will the balloon contain if the pressure is lowered to 67 kpa?

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.