Unit 3:Properties of Substances and Mixtures.
3.1 Intermolecular and Interparticle Forces.
List all intermolecular forces present in a pure sample.
Identify and label the presence of a hydrogen bond.
Compare the strength of IMFs present in a sample.
Justify differences in physical properties of two substances based on
IMF strength and atomic/electronic structure.
Use Lewis structures to determine IMFs and their impact on interactions.
3.2 Properties of Solids.
Identify the type of solid given its formula or properties.
Use IMFs/interparticle forces to explain variations in physical
properties.
Justify solid properties using representations of ionic, molecular,
metallic, and network covalent solids.
Compare and contrast the properties of different solid types.
3.3 Solids, Liquids, and Gases.
Compare the movement and packing of particles in different phases.
Draw a representation of a substance in solid, liquid, and gas phases.
3.4 Ideal Gas Law.
Analyze graphs of P, V, T, and n to determine relationships.
Use PV = nRT to calculate gas conditions.
Determine unknown gas conditions given initial and final states.
Apply mole fraction to determine partial pressure.
Calculate gas density given identity, temperature, and pressure.
3.5 Kinetic Molecular Theory.
Draw a representation of gases under given conditions.
Use the kinetic energy equation to compare gas velocities.
Interpret Maxwell-Boltzmann distributions to identify unknown gases.
3.6 Deviation from Ideal Gas Law.
Justify differences between ideal and real gas behavior based on gas
properties, IMFs, and conditions.
3.7 Solutions and Mixtures.
Use M = mol/L to calculate concentration, amount, mass, or volume.
Use M₁V₁ = M₂V₂ for dilution calculations.
3.8 Representations of Solutions.
Represent component interactions and concentrations using particulate
models.
Draw solutions with correct proportions to depict concentration.
Illustrate solute-solvent interactions.
3.9 Separation of Solutions and Mixtures.
Choose the appropriate separation technique for a solution/mixture.
Calculate Rf values from chromatography data.
Compare Rf values based on intermolecular interactions.
3.10 Solubility.
Determine miscibility of two liquids based on IMFs.s
Select the best solvent for dissolving a solid solute based on IMFs
3.11 Spectroscopy and the Electromagnetic Spectrum.
Assign the correct electromagnetic spectrum region for molecular
rotation, vibration, and electronic energy transitions.
3.12 Properties of Photons.
Convert between wavelength and frequency using c = λν.
Convert between energy and frequency using E = hν.
Use frequency as a bridge to convert between wavelength and energy.
3.13 Beer-Lambert Law.
Select the correct wavelength for maximum absorbance based on absorbance
vs. wavelength graphs.
Use absorbance vs. concentration graphs to find A or c.
Recognize that the slope of A vs. c graphs equals εb.
Use A = εbc to calculate concentration, given path length and molar
absorptivity.