The molecular weight of polyacrylamide can vary depending on the degree of polymerization and the presence of any branching or modifications. However, the average molecular weight for commercial polyacrylamide typically ranges from about 5,000 to 25,000,000 grams per mole (g/mol).

It's important to note that polyacrylamide can be produced in various molecular weight ranges to suit specific applications. Low molecular weight polyacrylamide are often used in industries such as cosmetics, while high molecular weight polyacrylamide are commonly employed in wastewater treatment, oil and gas recovery, and other industrial processes.

Polyacrylamide is a polymer composed of repeating units of acrylamide monomers. The molecular weight of polyacrylamide can vary significantly depending on the degree of polymerization or the length of the polymer chain. 

In general, polyacrylamide used in various applications have molecular weights ranging from a few thousand to several million Daltons. High molecular weight polyacrylamide are often used in applications such as water treatment, enhanced oil recovery, and flocculation processes, while low molecular weight polyacrylamide are used in applications such as gel electrophoresis and biomedical research.

It's important to note that the molecular weight can affect the performance and properties of polyacrylamide, such as viscosity, solubility, and effectiveness in different applications.

If you need a more precise molecular weight for a specific grade or type of polyacrylamide, it would be best to consult the manufacturer or supplier of the material.