Polyethylene Is a Synthetic Polymer or Plastic with Many Uses

question 1

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

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