just question 10 please I need a complete solution :( 7. The boiling point of ethanol (CaHsOH) is 78.5°C. What is the boiling point of3.4 g of vanillin (MW = 152.14 g/mol) in 50.0 g of ethanol (kb of ethanol= 1.22 °C/m)8. What is the minimum mass of ethylene glycol (CaH&Oz2) that must bedissolved in 14.5 kg of water to prevent the solution from freezing at-10.0 F?9. Wastewater discharged into a stream by a sugar refinery contains sucrose(C12H22O11) as its main impurity. The solution contains 3.42 g of sucrose/L. Agovernment industry project is designed to test the feasibility of removingthe sugar by reverse osmosis. What pressure must be applied to the apparatusat 20°C to produce pure water?10. In a study designed to prepare new gasoline-resistant coatings, a polymer chemistdissolves 6.053 g of poly(vinyl alcohol) in enough water to make 100.0 mL ofsolution. At 25°C, the osmotic pressure of this solution is 0.272 atm. What is themolar mass of the polymer sample?

Answered: Image /qna-images/answer/10e4ac79-3cfa-4cbe-b7c6-a769ad49feb9.jpg

10. In a study designed to prepare new gasoline-resistant coatings, a polymer chemist dissolves 6.053 g of poly(vinyl alcohol) in enough water to make 100.0 mL of solution. At 25°C, the osmotic pressure of this solution is 0.272 atm. What is the molar mass of the polymer sample?

10. In a study designed to prepare new gasoline-resistant coatings, a polymer chemist dissolves 6.053 g of poly(vinyl alcohol) in enough water to make 100.0 mL of solution. At 25°C, the osmotic pressure of this solution is 0.272 atm. What is the molar mass of the polymer sample?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 28QRT

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Question

just question 10 please I need a complete solution :(

7. The boiling point of ethanol (CaHsOH) is 78.5°C. What is the boiling point of
3.4 g of vanillin (MW = 152.14 g/mol) in 50.0 g of ethanol (kb of ethanol
= 1.22 °C/m)
8. What is the minimum mass of ethylene glycol (CaH&Oz2) that must be
dissolved in 14.5 kg of water to prevent the solution from freezing at
-10.0 F?
9. Wastewater discharged into a stream by a sugar refinery contains sucrose
(C12H22O11) as its main impurity. The solution contains 3.42 g of sucrose/L. A
government industry project is designed to test the feasibility of removing
the sugar by reverse osmosis. What pressure must be applied to the apparatus
at 20°C to produce pure water?
10. In a study designed to prepare new gasoline-resistant coatings, a polymer chemist
dissolves 6.053 g of poly(vinyl alcohol) in enough water to make 100.0 mL of
solution. At 25°C, the osmotic pressure of this solution is 0.272 atm. What is the
molar mass of the polymer sample?

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