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For the following pair of polymers, state whether or not it is possible to determine whether one polymer is more likely to crystallize than the other.
1) linear and syndiotactic polypropylene
2) Crosslinked cis-isoprene
A. it is not possible to decide for these two polymers
B. crosslinked cis-isoprene is more likely to crystallize
C. linear and syndiotactic polypropylene is more likely to crystallize
An aqueous solution containing 21.6 mg of vasopressin in 100.0 mL of solution has an osmotic pressure at 25.0 oC of 3.70 mmHg. What is the molecular weight of the hormone?
What is the molarity of sucrose, C12H22O11, that contains 125 g of sucrosein 3.50L of solution?
When solid iodine is introduced into an evacuated vessel at 25 degrees Celcius, some of the iodine sublimes. Predict how the enthalpy, entropy, and free energy change in the system
How many milliliters of O2 measured at 24C and 757mmHg , are released from solution in the first minute of the reaction? Please find volume
How wil you determie the relative reactivites of aromatic compounds? Outline the procedure that you need to do in the laboratory to determine the relative reactivites of the following:
Sodium atoms emit light with a wavelength of 330 nm when an electron moves from a 4 p orbital to a 3 s orbital. What is the energy difference between the orbitals in kilojoules per mole?
How does the hydrogen ion (H+) [or the hydronium ion (H3O+)] and the hydroxide ion (OH-) fit into all of this? What is their role in this reaction?
Compute the molar mass of vitamin C if a solution of 22.7 g in 100. g of water freezes at -2.40 oC. The Kf of water is 1.858 oC kg/mol.
A 24.0 g sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 3.85 g NH3. What is the percent yield for this reaction? Reaction: N2(g) + 3 H2(g) ? 2 NH3(g)
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals, which were filtered from the solution
What term describes a solution in which the solute concentration exceeds its equilibrium concentration under the prevailing conditions?
You have prepared a saturated solution of at 20 degree celcius using 31.0 of water. How much more solute can be dissolved if the temperature is increased to 30 degree celcius.
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