Question

What type of bond (covalent, polar covalent or ionic) does aspirin have?

Answer 1

Well to keep this answer short the bonds within aspirin, as with most synthetic drugs, are covalent. Most of the man made reagents we use have some sort of carbon backbone, hydrogen, and commonly oxygen and nitrogen. All these elements bond covalently due to their high electronegativity (share electrons vs take/give up electrons). Aspirin has Carbon, Oxygen, and Hydrogen. If you have taken organic chemistry, knowing the chemical groups (i.e. hydroxyl, alkoxy (ether grp), carboxyl, and ester for aspirin groups) would be useful. Here's the skeletal diagram from wikipedia:

http://en.wikipedia.org/wiki/File:Aspirin-skeletal.svg

Answer 2

some drugs exist as salts, which has an ionic component to balance out the charge.

Answer 3

aspirin is a hydrocarbon, which means they are held by covalent bonds -

Answer 4

I hope that you know what a covalent bond is, btw.