Dynamic viscosity and molar mass are two different physical properties and cannot be directly converted from one to another. Dynamic viscosity is a measure of the resistance of a fluid to flow under an applied force, while molar mass is a measure of the mass of one mole of a substance.
However, if you have information about the molecular weight of a fluid, you can use it to calculate the kinematic viscosity, which is the dynamic viscosity divided by the fluid's density. The kinematic viscosity has units of square meters per second (m²/s).
Once you have the kinematic viscosity, you can use the following formula to estimate the dynamic viscosity in centipoise (cP):
Dynamic viscosity (cP) = Kinematic viscosity (m²/s) x Density (g/cm³) x 1000
To calculate the molar mass from the dynamic viscosity, you would need additional information about the fluid, such as its molecular structure and density.