Ask Question
14 November, 20:11

8. Polyethylene is a synthetic polymer or plastic with many uses. 1.44 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 25oC. What is the approximate molar mass of the polyethylene?

+4
Answers (1)
  1. 14 November, 22:29
    0
    The approximate molar mass of the polyethylene is 143,723.7 g/mol

    Step-by-step explanation:

    From the ideal gas equation

    PV = mRT/MW

    MW = mRT/PV

    m = 1.44 g

    R = 82.057 cm^3. atm/gmol. K T = 25°C = 25+273 = 298 K

    P = 1.86 torr = 1.86/760 = 0.00245 atm

    V = 100 mL = 100 cm^3

    MW = 1.44*82.057*298/0.00245*100 = 143,723.7 g/mol
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “8. Polyethylene is a synthetic polymer or plastic with many uses. 1.44 g of a polyethylene sample was dissolved in enough benzene to make ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers