Polyethylene Is a Synthetic Polymer or Plastic with Many Uses

Multiple Choice

Polyethylene is a synthetic polymer or plastic with many uses. 1.40 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of solution, and the osmotic pressure was found to be 1.86 torr at 25°C. What is the molar mass of the polyethylene?

A) 3.39 × 10⁶ g/mol
B) 1.19 × 10⁴ g/mol
C) 1.06 × 10⁸ g/mol
D) 5720 g/mol
E) 1.40 ×10⁵ g/mol