The given question is incomplete. The complete question is :
This is the chemical formula for carvone (the chemical that gives spearmint its flavor) [tex]C_{10}H_{14}O[/tex]: An organic chemist has determined by measurements that there are 27.3 moles of carbon in a sample of carvone. How many moles of oxygen are in the sample
Answer: 2.73 moles of oxygen are there in the sample.
Explanation:
The chemical formula of carvone is [tex]C_{10}H_{14}O[/tex].
This means:
When 10 moles of carbon are there in carvone , 1 mole of oxygen is there in carvone
Thus for 27.3 moles of carbon in carvone , [tex]\frac{1}{10}\times 27.3=2.73[/tex] mole of oxygen is there in carvone.
Thus 2.73 moles of oxygen are there in the sample.