Recent content by fifi olu

https://www.physicsforums.com/threads/denser-material-floats.772393/reply?quote=4861154hank you very much M Quack. I thought as much; I just doubted myself.

Hi Dave, thank you very much for your response. the liquid is 2M hydrobromic acid (density: 1.49g/cm3) the denser material is silica (density: 2.65g/cm3) the sililca is dispersed in the acid. but when I add styrofoam balls to the mixture, the dispersion separates into 'acid at the bottom' and...

Hi, Sorry for double posting but I wasn't sure of the right thread. I am working with a colloidal system in which the particles are heavier than liquid. However when I add styrofoam to the system, the particles float. I can't seem to understand why the heavier particles float instead of...