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Intercalation compounds have their sheets
a) negatively charged.
b) positively charged.
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- The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had (200. g) of ordinary table sugar, which chemists call sucrose, and which has the chemical formula C12H₂2011. Calculate the maximum mass of water you could theoretically extract. Be sure your answer has alunit symbol, and round it to 3 significant digits. 0 HO CH₂OH OH OH OH The actual chemical structure of glucose.The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had 300.g of ordinary table sugar, which chemists call sucrose, and which has the chemical formula C12H22O11 . Calculate the maximum mass of water you could theoretically extract. Be sure your answer has a unit symbol, and round it to the correct number of significant digits.CH3CH(NH2)CO2H in (zig-zag) structure
- Amorphous polymers are usually transparent and semi-crystalline polymers are usually opaque. Correct?(a) No. They are all made up of polymer chains. True if they were monomers.(b) Yes. The arrangement of the chains determines the passage of light.(c) No. It is the other way around.(d) Crystallinity or amorphousness does not affect the transparency or opacity of the material.what are the chemical behaviors of C3H7HO? and what is viscosity? how do bonds and intermolecular forces effect the vicsocity of C3H7HO?(a) (b) (c) t
- (a) What is the standard enthalpy of reaction for the reaction of 1.00 mol of propene with 1.00 mol of hydrogen to yield 1.00 mol of propane. (All gas phase) (b) What is the standard entropy change for the reaction? (c) What is the standard free energy change for the reaction carried out at 400 K? (You cannot use ∆Gfo data from the appendix). (d) Is the reaction spontaneous? (a) (b) (c) (d)What equation does one use to calculate the total entropy change of a binding reaction from a known free energy and enthalpy under standard conditions? If the free energy change is equal to the enthalpy change, what is the change in entropy? What can be said about the various contributions to the total entropy change?Explain briefly why the tendency of a polymer to crystallize decreases with increasing molecular weight
- 4. Outline the following synthesis (a). Butane to 2-butanol (b). 1,2-dibromopropane from 2-propanol (c). 1-butanol to 2-butanol (d). Propane to Propene29. Identify the types of intermolecular force(s) between molecules of each of the following: (8) H-C-F (a) (b) CН3ОН (c) N2 (d) CoНо HICIHCyclopropane decomposes fairly rapidly at moderate temperatures whereas cyclohexane is quite stable. Why is this the case?
