The ability to oxidize and ultrasonicate Single Walled Carbon Nanotubes (SWCNT's) has prompted a study of the length distributions as a function of 1) time of carbon nanotubes in acid, 2) time of ultrasonication and 3) concentration of solution. The acid solution used in these series of experiments is a mixture of 3:1 Sulfuric to Nitric acids respectively . Properties of the nanotubes, such as apparent defects, effective diameters and lengths of the shortened nanotubes were studied using Raman Spectroscopy, Dynamic Light Scattering, Scanning Electron Microscopy and UV-Vis-NIR Spectral analysis. The latter method was also used in determining the concentration carbon nanotubes collected in de-ionized water at a nearly neutral pH.