IMF's
What type of IMF's would be found in HCl?
What is dispersion and dipole-dipole
High melting points
What is ionic compound?
This is the visible shape of H2O
What is Bent?
CS2
What is Non-polar?
This is the range in electronegativity required to make a bond polar
What is 0.5-2.0?
What IMF is the weakest?
What is Dispersion?
Zero conductivity as a pure substance
What is both (ionic and covalent)?
The visible shape of a molecule that has 2 total bonded atoms and unshared pairs on the central atom and 1 unshared pair
What is Linear?
OCl2
What is Polar?
3 properties of covalent (organic) compounds (HINT: Think back to the properties you discovered in the Properties of Compounds Lab)
What are the following properties?
- Made of only nonmetals
- Doesn't conduct as a pure substance
- Doesn't conduct electricity in solution (when dissolved in water)
- Melts
- Flammable
- Polar substances dissolve in water, Nonpolar substances do not dissolve in water
- More likely to be a liquid or gas at room temp
- Contains polar and/or nonpolar bonds
What molecule would have stronger IMF's: H2O or CCl4?
What is H2O?
Low conductivity as a solution
What is covalent?
This is the visible shape of CCl4
What is Tetrahedral?
PCl3
What is Polar?
3 properties of ionic (inorganic) compounds? (HINT: Think back to the properties you discovered in the Properties of Compounds Lab)
What are the following properties?
- Made of metals and nonmetals
- Doesn't conduct as a pure substance
- Conducts electricity in solution (when dissolved in water)
- Doesn't melt with a bunsen burner
- Not flammable
- Dissolves in water
- More likely to be a solid at room temp
- Does NOT contains polar and/or nonpolar bonds
What IMF's are present in C2H6?
What is Dispersion?
Acidic compounds (lower pH) tend to be:
What is covalent?
The difference between the electron geometry and visible geometry of a molecule
What are lone pair electrons are included in the electron geometry?
CO2
What is Non-polar?
Determine the bond polarity and molecular polarity for CH2O
Bond polarity:
C-H: 2.5-2.1=0.4 Nonpolar
C-O: 3.5-2.5=1.0 Polar
Molecular polarity:
Polar
Rank the following compounds from weakest intermolecular forces to strongest.
Br2 NH3 HBr
What is Br2 , HBr, and NH3?
Non-flammable
What is ionic?
The reason for SO2 and CO2 to both have polar bonds but different solubilities in water (SO2 dissolves in water but CO2 doesn't)
Why does polar molecules dissolve in polar molecules and nonpolar molecules dissolve nonpolar molecules ("like dissolves like")? SO2 is a polar molecule and CO2 is a nonpolar molecule and since "like dissolves like" SO2 dissolves and CO2 doesn't. Molecular polarity determines the intermolecular forces, not bond polarity.
These are the two things that determine the polarity of a molecule
What are visible shape and electronegativity (polar bonds)?
Explain why paint thinner will dissolve paint using the concept of polarity.
What is both have the same polarity (both are non-polar) and like dissolves like?