The koala bear dines exclusively on eucalyptus leaves. Its digestive system detoxifies the eucalyptus oil, a poison toother animals. The chief constituent in eucalyptus oil is asubstance called eucalyptol, which contains 77.87 percent C, 11.76percent H, and the remainder O.
(a) What is the empirical formula for this substance?
(b) A mass spectrum of eucalyptol shows a peak at about 154amu. What is the molecular formula of the substance?