gold is usually found in pure form because it is not reacting with other chemicals naturally.
The functional group of aspartic acid is -COOH.
Use mv=mv, plug in the know 1x9.24=3m. Solve for m, which m is 3.08M
Heptane means seven carbon atoms and since the general formula is CnH2n+2, heptane will be C7H16
I think it is trace evidence since it is really small and hard to find.