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An 8-residue linear polymer of glucose can be prepared from starch. Assume that the linkages between the glucose residues in the octamer are the same as those found in starch., design an experiment that would verify the molecular weight of this octamer. That is, you wish to prove that the powder you have isolated is in fact an octamer of glucose. Assume that you have a pure, dry sample of this carbohydrate, and have dissolved 5 mg in a final volume of 1 mL. Outline the protocol, dilutions required, etc., and the anticipated results of the experiment.
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite
In a Sn1 reaction, define what will happen to the rate of the reaction if the concentration of nucleophile is decreased by 50%. Explain what if the reaction is Sn2
Calculate this salt's solubilty and the molarities of the ions in a saturated solution. Then use this information in the previous problem to find the solubilty of Pbl2
What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current
Which of the compounds in the previous problem are aromatic? Which are isomers? a.ethylene b.1-butene c.2-chloro-1,3-butadiene d.2,5-dimethyl-3-hexene e.3-isopropylcyclopentene f.1,3-dimethylbenzene
Determine the pressure of 0.7500 mol of non-ideal gaseous carbon dioxide confined in a volume of 1.000 L at 240.0
Magnesium carbonate has a ksp value of 6.80×10?6 . What happens when magnesium and carbonate solutions are mixed to give 2.50×10?3 M Mg^2+ and 2.00×10?3 MCO3^2-
A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
A solution of ammonia and water contains 4.40×1025 water molecules and 8.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
At 25 C the decomposition of dinitrogen tetra oxide N2O4(g) 2NO2(g) has an equilibrium constant Kp of .144. At Equlibrium, the total pressure of the system is .0758 atm. What is the partial pressure of each gas
Question- If a buffer solution is 0.100 M in a weak acid (Ka=3.8 x 10^-5) and 0.480 M in its conjugate base, what is the pH
1) How are the atoms arranged within nylon 6 molecular structure that leads to its strength, and explain the significance of the intermolecular forces which give it its high melting point? 2) Why is nylon 6 not a condensation polymer unlike most n..
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