How do I determine Avogadro's number with this information?

Using the volume, density and molar mass of carbon, determine Avogadro's number. Density of C: 3.51 Volume:2.60x10^-25 Molar Mass:12.01 I just don't know how to use these numbers to arrive at the number. (note) the volume may be off because of experimental error, i just need to know the correct set... show more Using the volume, density and molar mass of carbon, determine Avogadro's number.
Density of C: 3.51
Volume:2.60x10^-25
Molar Mass:12.01

I just don't know how to use these numbers to arrive at the number. (note) the volume may be off because of experimental error, i just need to know the correct set up

Thanks
2 answers 2