Kahoot Flashcards
It is any force that binds together the atoms making up a molecule or compound
Intramolecular force
Boiling point and Melting point are physical properties
True or False
True
What is the effect of the IMF on the boiling point?
A. Molecules with stronger IMF will have a higher boiling point
B. IMF has no effect on the boiling point
C. Molecules with stronger IMF will have a 100 boiling point.
D. Molecules with stronger IMF will have a lower boiling point
A. Molecules with stronger IMF will have a higher boiling point
London dispersion forces are the Weakest Intermolecular Forces
True or False
True
Ion-Dipole forces is the Strongest Intramolecular Force
True or Flase
False
Ion-Dipole is an intermolecular force :)
Identify the IMF;
It is a special kind of dipole-dipole interaction formed when a hydrogen atom covalently bonded to a small and highly electronegative atom such as N, O, or F.
Hydrogen Bond
Is Glass an amorphous solid?
True or False
True
Is Quartz an amorphous solid?
True or False
False
Quartz is a crystalline
What is the relationship between IMF and vapor pressure
A. No effect
B. Same Vapor pressure
C. Stronger IMF = Lower Vapor Pressure
D. Stronger IMF = Higher Vapor Pressure
C. Stronger IMF = Lower Vapor Pressure
Which has the greatest IMF (london dispersion) between Br2, F2, Cl2, I2
I2
Which has the weakest IMF (london dispersion) between Br2, F2, Cl,2, I2
F2
According to KMT, Increase in temperature will cause the average KE of the particles in solid, liquid, and gas to increase.
True or Flase
True
It contains maximum amount of solute that will dissolve in a solvent
Saturated
It contains more than the maximum amount of solute that will dissolve in a solvent
Super Saturated
It contains less than the maximum amount of solute that will dissolve in a solvent
Unsaturated
Calculate the mass percent of a NaNO3 solution when 150.0 g NaNO3 is dissolved in 500 mL of H2O, Density of H2O = 1g/ml
0.23
w/w% = Solute/Solution
150g = Solute
500 mL = Solvent
150g (Solute)+500 mL (Solvent) = 650 (Solution)
150 divided by 650 = 0.23 w/w%
Molarity (m) is defined as the amount of the solute (mol) per mass of solvent (kg)
False
Molarity (m) <== Wrong Symbol
Molarity (M) <== Correct Symbol
The substance dissolved in a solution and is usually present in smaller amounts.
Solute
The dissolving medium in a solution and is usually present in larger amounts
Solvent
Which % equation is best for a solute with L unit and solvent with L unit
%volume
%mass
%mass-volume
%volume-mass
%volume
Which % equation is best for a solute with kg unit and solution with kg unit
%volume
%mass
%mass-volume
%volume-mass
%mass
Which % equation is best for a solute with kg unit and solution with mL unit?
%mass-volume
The volume of the solution is the amount of solvent in mL or L
False
the volume of the solution is the amount of solute and solvent in mL or L
The mass of the solution is the amount of solvent and solute in kg or g
True
What is the relationship of the solubility of a gas and temperature?
A. Solubility of a gas in water will increase with increasing temperature
B. Solubility of gas in water will decrease with increasing temperature
C. There is no Relationship
D. The solubility will remain the same
B. Solubility of gas in water will decrease with increasing temperature
Gas with higher temperatures has higher kinetic energy, so they move
more erratically, meaning they are more difficult to handle
When is the best time to fish, during daytime (hot temp) or nighttime (colder temp)? Why?
A. Temperature does not have an effect
B. Night time because there will be more dissolved O2
C. Daytime because there will be more dissolved O2
D. Any time
B. Night time because there will be more dissolved O2
Gasses with lower temperatures have lower kinetic energy, so they move less erratically, making them more likely to dissolve.
What will be the effect of the size of a molecule on the London dispersion force?
A. Greater the Surface area the stronger the atom
B. The size of the molecule has no effect on the London dispersion force
C. Greater the size of the molecule the Lesser the London Dispersion force
D. Greater the size of the molecule the greater the London dispersion force
D. Greater the size of the molecule the greater the London dispersion force
The larger the molecule, the higher the polarizability
Higher polarizability means stronger dispersion forces
London dispersion forces depend on the size of the material. Heavier atoms or molecules have more electrons and stronger London Force.
True or False
True
If Chlorine is an anion, what charge of an atom will be attracted to it?
Cation (+)
An Anion is an ion with a negative charge
Oppositely charged ions attract each other.
Beaker is the most accurate with tolerances of less than 0.2%
True or False
False
Volumetric Flask
Which shows cohesion?
Concave Meniscus
Convex Meniscus
Convex Meniscus
Which shows Adhesion?
Concave Meniscus
Convex Meniscus
Concave Meniscus
Cohesion is the INtermolecular force between 2 types of molecules. Adhesion is the attractive force between 2 similar molecules
False
Soap is effective as a cleaning agent because it is amphiphilic, it is partly polar (hydrophilic) and partly nonpolar (hydrophobic)
Ture or False
True
Ionic and Covalent Bonding is an Intermolecular force
True or False
False
Ionic and Covalent is an Intramolecular force
London dispersion and dipole-dipole interaction is Intramolecular Force
False
London dispersion and dipole-dipole is an Intermolecular Force
What is the relationship between the solubility of a gas and pressure?
A. Solubility of a gas in water will increase with increasing pressure
B. The Solubility will remain the same
C. Solubility of a gas in water will decrease with increasing pressure
D. There is no relationship
A. Solubility of a gas in water will increase with increasing pressure
Gas is compressible so we can assume that the solubility will increase because as we increase the pressure the gas will become much more compressed with the water, leading it to become easier to dissolve
What is the effect of the vapor pressure of adding an electrolyte solute in a solvent?
A. The nonvolatile solution will have the lowest vapor pressure
B. The less electrolyte dissociation, the lowest the vapor pressure is
C. The volatile solution will have the lowest vapor pressure
D. The more electrolyte dissociation, the lowest the vapor pressure is.
D. The more electrolyte dissociation, the lowest the vapor pressure is.
As the electrolytes become dissociated, they begin to occupy spaces, reducing the room for the solvent molecules, thus reducing the amount of vapor pressure.
Properties that depend on the number of solute particles in a solution (concentration) but not its identity
Colligative
Min. pressure that is applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane
Osmotic Pressure
