i have a density of 1.9x 10 (negative cubed)g/cm cubed.and i have a mass of 50.0 g. do i need to convert my density in order to find my volume?
No, you can do that after solving for volume in cm^3.
1cm^3=1mL=10^-3L=10^-6*m^3
1cm^3=1mL=10^-3L=10^-6*m^3