Explain polyethylene molecules in a solution

Assignment Help Chemistry
Reference no: EM13184629

Suppose polyethylene molecules in a solution can exist in either a random-coil conformation or in a fully stretched-out conformation. The stretched-out conformation is 2.4 kJ/mol higher in energy than the random-coil conformation. What percentage of molecules are in the stretched-out conformation at 20 degrees Celsius?

Reference no: EM13184629

Questions Cloud

Explain the crowding-out effect : The "crowding-out effect" suggests that A. excessive population in the cities is pushing people into the suburbs.B. if consumption spending increases investment spending must decrease. C. tax increases are paid primarily out of saving and, therefore,..
How many grams of solid glutamic acid need : Prepare 3 liters of 0.5 M glutamic acid buffer, with pH 4.1, from solid glutamic acid (pKa=4.2) and 2 M NaOH. How many grams of solid glutamic acid (MW=147 g/mol) would you have to use and how many mls of 2 M NaOH would you need?
Group experiences prejudice or discrimination : When a group experiences prejudice or discrimination and yet seems to have succeeded economically, social and educationally without resorting to political or violent confrontations with others, they are said to be: minority
Contribute to the start of the french revolution : Why did the French royal government fail to put into action and reforms proposed in royal ministers and how did this contribute to the start of the French Revolution? What made Louis XVI agree in August 1788 to call the Estate General for 1789?
Explain polyethylene molecules in a solution : Suppose polyethylene molecules in a solution can exist in either a random-coil conformation or in a fully stretched-out conformation. The stretched-out conformation is 2.4 kJ/mol higher in energy than the random-coil conformation.
State hexane and ethyl alcohol : A) aqueous naoh and ch3ch2co2h B) aqeous naoh and c6h5so3h c) ch3ch2Li in hexane and ethyne d) ch3ch2Li in hexane and ethyl alcohol
Describe the story told in the book of tobit : Describe the story told in the Book of Tobit. What is its genre, when is it thought to have been composed, and what is the point (or points) of the story?
Why the consistent drop in the price of mp4 players : The price of MP4 players has been going down in the past decade. Give an explanation for this consistent drop in the price of MP4 players. Use the model for long run competitive firm to illustrate your answer. Draw two graphs. One is to show the ..
Compute the molarity of the kmno4 solution : calculated was contained in 23.80 mL of KMnO4 solution. calculate the molarity of the KMnO4 solution.

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the mass of the solvent

Calculate the mass of the solvent (CCl4) in kg. Use the molality calculated in question 2 and the solvent mass calculated in question 3 to determine the number of moles of solute present in this solution.

  Find out the rate law and the value of k

Determine the rate law and the value of k for the following reaction using the data provided

  Define soluiton containing of sodium sulfate

If 500ml of a solution containing 1.00g of barium nitrate (199.33 g/mol) is combined with 500 ml of a soluiton containing 1.00g of sodium sulfate

  Calculate the average atomic mass of argon

Three isotopes of argon occur in nature - 36Ar, 38Ar, 40Ar. Calculate the average atomic mass of argon to two decimal places, given the following relative atomic masses and the abundances of each of the isotopes: argon

  Compute the fraction of dissociation

Calculate the [H3O+], pH, and the fraction of dissociation (α) in an aqueous 0.140 M NH3 solution. (Hint: You will need the Ka, located in the back of your textbook.)

  How many calcium ions does it contain

Calcium reacts with iodine to form an ionic compound. If a sample of the compound contains 8.5 x 1019 iodide ions, how many calcium ions does it contain?

  Write balanced equation for reaction of active ingredients

write the balanced equation for the reaction of the active ingredients in Gaviscon Extra strength with excess acid.

  How many grams of the solid can be formed

How many grams of the solid can be formed from 268 g of calcium nitrate and 115 g of phosphoric acid?

  State the change in enthalpy is negligible

Calculate the Gibbs free energy (in kJ/mol) at 80 degrees celsius. Assuming that the change in enthalpy is negligible over this temperature range

  How long will it take for the level of fluorine

Medical technicians use deoxyglucose labeled with fluorine-18 to locate tumors using a pet scan. A medical technician injects a patient with a therapeutic dose of fluorine-18.

  State industrial preparation of organic phosphorus compounds

Phosphorus pentachloride is used in the industrial preparation of organic phosphorus compounds. Equation 1 shows its preparation from PCl3 and Cl2. (1) PCl3(l) + Cl2(g) PCl5(s)

  Calculate the percent yield if the actual yield

Calculate the percent yield if the actual yield of aluminum oxide is 0.423mol.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd