Chemistry Class: Ligands and Polymers
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Questions and Answers

What defines a bidentate ligand?

  • A ligand that can bind to anions only.
  • A ligand that forms complexes with nonmetals.
  • A ligand that can attach to a metal at two points. (correct)
  • A ligand that can only attach to a metal at one point.

    • What are the monomers used in the preparation of nylon 6,6?

  • Hexamethylenediamine and adipic acid. (correct)
  • Caprolactam and maleic anhydride.
  • Ethanol and acetic acid.
  • Butadiene and styrene.

    • How is the molar mass of a solute calculated using osmotic pressure?

  • Using the ideal gas law and temperature only.
  • Using osmotic pressure, volume, and temperature. (correct)
  • Using concentration and density of the solution.
  • Using the mass of solute and volume of solution.

    • What is a nucleotide composed of?

    <p>A sugar, a phosphate group, and a nitrogenous base.</p> Signup and view all the answers

    What distinguishes a double salt from a coordinate compound?

    <p>Double salts are formed from two different ionic compounds, while coordinate compounds involve coordinate bonds.</p> Signup and view all the answers

    Study Notes

    Bidentate Ligands

    • Bidentate ligands are ligands that bind to a central metal ion through two donor atoms.
    • Example: Ethylenediamine (en)

    Nylon 6,6 Polymer

    • Monomers:
      • Adipic acid
      • Hexamethylenediamine
    • Structure: (Describe the structure of the polymer and monomers)

    Molar Mass Calculation

    • Given:
      • Mass of solute = 0.822 g
      • Volume of water = 0.3 dm³ = 0.3 L
      • Osmotic pressure = 0.196 atm
      • Temperature = 298 K
    • Calculate molar mass using the osmotic pressure formula.

    Nucleotide

    • Nucleotides are organic molecules that serve as the building blocks of DNA and RNA.

    Polyacrylonitrile (PAN) Preparation

    • Write the reaction for the preparation of PAN.

    Difference between Double Salt and Coordinate Compounds

    • Double Salt:
      • A crystalline compound which consists of two or more salts.
      • Each salt retains its own chemical properties.
      • Separates on crystallization into different components.
    • Coordinate Compound:
      • A compound formed by the combination of a central metal ion and surrounding ligands.
      • Ligands are bonded to the central metal ion through coordinate covalent bonds.
      • Ligands have lone pairs for donation.
    • Example: (Provide an example of both a double salt and a coordinate compound)

    Applications of Coordinate Compounds

    • Provide two applications of coordinate compounds.

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    Description

    This quiz covers essential concepts in chemistry, including bidentate ligands, polymer structures like Nylon 6,6, and the calculation of molar mass through osmotic pressure. Additionally, it explores nucleotides and the differences between double salts and coordinate compounds. Test your understanding of these fundamental topics!

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