137. Solving a chemistry problem

137. Solving a chemistry problem

Determine the viscosity of the hydrosol of lanthanum oxyhydroxide LaOOH if the concentration of the dispersed phase is a) 2 wt. % b) 4 vol. %. The particles are spherical and have a density of 5.7 g / cm3. Take the density of water equal to 1.0 g / cm3.